Optoelectronic fusion multi-user communication method, device and electronic equipment

Abstract

The application relates to a kind of photoelectric fusion multi-user communication method, device and electronic equipment, wherein, method includes: deploying multiple photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication;According to the channel state information and data rate requirement of multi-user, based on the power constraint of multiple transmitters, the access and power allocation of multi-user are optimized, and the optimization result of multi-user access and the optimization result of power allocation are obtained;The signal required by each user is allocated to the corresponding photoelectric fusion transmitter, and based on the optimization result of power allocation, visible light signal and radio frequency signal are sent according to the corresponding power gain, each user uses optical detector to receive visible light signal, uses antenna to receive radio frequency signal, and reconstructs original signal through digital signal processing. Thus, in the related art, the technical problems that quality of service and communication rate, energy efficiency cannot be considered, and reasonable allocation of limited communication resources is difficult to realize are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, and in particular relates to an optical-electricity fusion multi-user communication method and device and electronic equipment. BACKGROUND

[0002] Traditional wireless communication mainly relies on RF (Radio Frequency) communication as the main way to access a wireless local area network. However, wireless spectrum resources are increasingly scarce, and the proliferation of wireless devices has led to serious access congestion problems. In order to meet these needs, academia and industry urgently need to develop new spectrum resources and communication methods, and VLC (Visible Light Communication) is a promising candidate technology.

[0003] VLC uses an LED (Light Emitting Diode) to emit a visible light signal, and uses a PD (Photo-Diode) to receive the visible light signal. At the same time, the VLC transmitter can be deployed on the existing lighting infrastructure, and can make full use of the rich unlicensed spectrum resources of visible light. However, VLC also has its own limitations, such as limited coverage of a single transmitter, and difficulty in implementing convenient uplink. Therefore, it is necessary to study an optical-electricity fusion communication system to achieve complementary advantages, including but not limited to local high-rate communication of VLC and wide-area coverage of RF.

[0004] However, in the related art, in order to achieve organic integration of optical-electricity heterogeneous systems, there are the following three problems: 1) the coverage ranges of optical-electricity systems are different, and a fusion framework with efficient switching mode is needed; 2) according to different applications and services, the optical-electricity fusion system needs to pay attention to different communication characteristics, and needs to select the corresponding optimization strategy; 3) limited communication resources need to be reasonably allocated, and the unified allocation between heterogeneous subsystems needs to be further studied.

[0005] In summary, in the related art, the fusion framework does not have efficient switching capability, cannot perform corresponding optimization according to different applications and services, and cannot reasonably allocate limited communication resources, making it difficult to break down the barriers between heterogeneous subsystems, and needs to be improved. SUMMARY

[0006] The present application provides an optical-electricity fusion multi-user communication method and device and electronic equipment to solve the technical problems in the related art that the quality of service and the rate and energy efficiency of communication cannot be considered, and it is difficult to reasonably allocate limited communication resources.

[0007] The first aspect of the present application provides a kind of photoelectric fusion multi-user communication method, comprising the following steps: deploying multiple photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication;According to the channel state information and data rate requirement of multiple users, based on the power constraint of multiple transmitters, the access of multiple users and power allocation are optimized, and the optimization result of the access of multiple users and the optimization result of power allocation are obtained;Based on the optimization result of the access of multiple users, the signal required by each user is allocated to the corresponding photoelectric fusion transmitter, and based on the optimization result of the power allocation, visible light signal and radio frequency signal are sent according to the corresponding power gain, each user uses optical detector to receive visible light signal, uses antenna to receive radio frequency signal, and reconstructs original signal by digital signal processing.

[0008] Optionally, in an embodiment of the present application, the deployment of multiple photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication includes: deploying the multiple photoelectric fusion transmitters;And / or, a single visible light transmitter or a single radio frequency transmitter is deployed in the same position or different positions.

[0009] Optionally, in an embodiment of the present application, the optimization of the access of multiple users and power allocation according to the channel state information and data rate requirement of multiple users, based on the power constraint of multiple transmitters, the optimization result of the access of multiple users and the optimization result of power allocation, includes: the uplink feedback of the channel state information and data rate requirement of the multiple users is carried out by using the duplex technology of radio frequency link, wherein the duplex technology of radio frequency link includes frequency division duplex, time division duplex and / or combination of the frequency division duplex and the time division duplex.

[0010] Optionally, in an embodiment of the present application, the optimization of the access of multiple users and power allocation according to the channel state information and data rate requirement of multiple users, based on the power constraint of multiple transmitters, the optimization result of the access of multiple users and the optimization result of power allocation, includes: selecting different visible light transmitters and radio frequency transmitters;Or, different transmission links of the same photoelectric fusion transmitter are selected.

[0011] Optionally, in an embodiment of the present application, the optimization of the access of multiple users and power allocation according to the channel state information and data rate requirement of multiple users, based on the power constraint of multiple transmitters, the optimization result of the access of multiple users and the optimization result of power allocation, includes: based on at least one of the total power constraint, the peak power constraint and the average power constraint of the power constraint, the distribution of direct current power and / or alternating current power is carried out.

[0012] Optionally, in an embodiment of the present application, the power allocation and the multi-user access are optimized based on the multi-user channel state information and the data rate requirement, and power constraints of the multiple transmitters, to obtain an optimization result of the multi-user access and an optimization result of the power allocation, including: performing communication performance optimization by using one or more of an alternating iterative algorithm, a mixed integer nonlinear programming algorithm, a simulated annealing algorithm, and a genetic algorithm.

[0013] Optionally, in an embodiment of the present application, the target of the communication performance optimization includes multi-user total data rate maximization, multi-user total energy efficiency maximization, and / or total energy efficiency maximization given a multi-user data rate requirement.

[0014] Optionally, in an embodiment of the present application, based on the optimization result of the multi-user access, the required signal of each user is allocated to a corresponding optoelectronic fusion transmitter, and based on the optimization result of the power allocation, the visible light signal and the radio frequency signal are transmitted according to the corresponding power gain, including: using the same intermediate frequency band and unified digital signal processing for the visible light signal and the radio frequency signal to unify the physical layer, and being fused with the preset power line communication.

[0015] The second aspect embodiment of the present application provides an optoelectronic fusion multi-user communication device, including: a deployment module configured to deploy a plurality of optoelectronic fusion transmitters supporting multi-user optoelectronic fusion wireless communication; an optimization module configured to optimize multi-user access and power allocation based on power constraints of the multiple transmitters according to multi-user channel state information and data rate requirement, to obtain an optimization result of the multi-user access and an optimization result of the power allocation; and a communication module configured to allocate the required signal of each user to a corresponding optoelectronic fusion transmitter based on the optimization result of the multi-user access, and transmit the visible light signal and the radio frequency signal according to the corresponding power gain based on the optimization result of the power allocation, wherein each user uses an optical detector to receive the visible light signal, uses an antenna to receive the radio frequency signal, and reconstructs the original signal through digital signal processing.

[0016] Optionally, in an embodiment of the present application, the deployment module includes: a first deployment unit configured to deploy the multiple optoelectronic fusion transmitters; and / or a second deployment unit configured to deploy a single visible light transmitter or a single radio frequency transmitter at the same location or different locations.

[0017] Optionally, in an embodiment of the present application, the optimization module includes: a feedback unit configured to perform uplink feedback of the multi-user channel state information and the data rate requirement by using a radio frequency link duplex technology, wherein the radio frequency link duplex technology includes frequency division duplex, time division duplex, and / or a combination of the frequency division duplex and the time division duplex.

[0018] Optionally, in an embodiment of the present application, the optimization module comprises: a first selection unit configured to select different visible light transmitters and radio frequency transmitters; or a second selection unit configured to select different transmission links of the same optoelectronic fusion transmitter.

[0019] Optionally, in an embodiment of the present application, the optimization module comprises: an allocation unit configured to allocate direct current power and / or alternating current power based on at least one of the total power constraint, the peak power constraint, and the average power constraint of the power constraint.

[0020] Optionally, in an embodiment of the present application, the optimization module comprises: an optimization unit configured to perform communication performance optimization by using one or more of an alternating iterative algorithm, a mixed integer nonlinear programming algorithm, a simulated annealing algorithm, and a genetic algorithm.

[0021] Optionally, in an embodiment of the present application, the target of the communication performance optimization comprises maximizing a total data rate of multiple users, maximizing a total energy efficiency of multiple users, and / or maximizing a total energy efficiency given a data rate requirement of multiple users.

[0022] Optionally, in an embodiment of the present application, the communication module comprises: a processing unit configured to use a same intermediate frequency band and unified digital signal processing to unify a physical layer for the visible light signal and the radio frequency signal, and to integrate with a pre-set power line communication.

[0023] A third aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the optoelectronic fusion multi-user communication method as described in the above embodiments.

[0024] The embodiments of the present application can design and optimize network structure, communication demand, resource allocation, and the like, deploy multiple optoelectronic fusion transmitters supporting multi-user optoelectronic fusion wireless communication, use a unified physical layer framework to simplify switching, consider optimization of achievable rate and energy efficiency, improve multi-aspect performance of the fusion system, implement joint power allocation between optoelectronic systems, break barriers between heterogeneous subsystems, adapt to multiple reception scenarios, improve communication performance of the optoelectronic fusion system, and perform optimal resource scheduling on the optoelectronic fusion transmitter according to optoelectronic channel state information and multi-user demand, thereby improving achievable rate and energy efficiency in the presence of interference between multiple users. Thus, the technical problems in the related art that cannot take into account quality of service and rate and energy efficiency of communication, and cannot reasonably allocate limited communication resources are solved.

[0025] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and the attached drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the application will become apparent and be well understood from the following description, taken in conjunction with the drawings, wherein:

[0027] Figure 1 Flow chart of a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0028] Figure 2 Principle schematic diagram of a transmitter and a receiver for a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0029] Figure 3 Flow chart of a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0030] Figure 4 Schematic diagram of a frame structure for a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0031] Figure 5 Principle schematic diagram of a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0032] Figure 6 Network architecture schematic diagram of a method for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0033] Figure 7 Schematic diagram of a structure of a device for optoelectronic fusion multi-user communication according to an embodiment of the application;

[0034] Figure 8 Schematic diagram of a structure of an electronic device according to an embodiment of the application. DETAILED DESCRIPTION

[0035] Embodiments of the application are described in detail below with reference to the attached drawing figures, wherein the same or like elements in the drawings are represented by the same or like reference numerals. The embodiments described below are exemplary in nature, and are intended to be illustrative of the application rather than to limit the application as construed in the appended claims.

[0036] The photoelectric fusion multi-user communication method, device and electronic equipment of the embodiments of the present application are described below with reference to the accompanying drawings. In view of the technical problems in the related art that the quality of service and the rate and energy efficiency of communication cannot be considered at the same time, and it is difficult to achieve reasonable allocation of limited communication resources, the present application provides a photoelectric fusion multi-user communication method. In the method, the network structure, communication demand, resource allocation and the like can be designed and optimized, a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication are deployed, a unified physical layer framework is used to simplify switching while considering optimization of achievable rate and energy efficiency to improve the performance of the fusion system in multiple aspects, joint power allocation between optoelectronic systems is implemented to break down the barriers between heterogeneous subsystems, adapt to various reception scenarios, and improve the communication performance of the photoelectric fusion system. According to the photoelectric channel state information and multi-user demand, the photoelectric fusion transmitters are optimally scheduled to improve the achievable rate and energy efficiency in the presence of interference between multiple users. Thus, the technical problems in the related art that the quality of service and the rate and energy efficiency of communication cannot be considered at the same time, and it is difficult to achieve reasonable allocation of limited communication resources are solved.

[0037] Specifically, Figure 1 A flowchart of a photoelectric fusion multi-user communication method provided by the embodiments of the present application is shown.

[0038] As Figure 1 shown, the photoelectric fusion multi-user communication method includes the following steps:

[0039] In step S101, a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication are deployed.

[0040] In actual implementation, in order to compensate for the deficiencies of the related art, i.e., the problem of different coverage ranges of optoelectronic systems, the embodiments of the present application can deploy optoelectronic systems when performing network architecture of the photoelectric fusion communication system, to play different roles for different demands, or consider visible light links and radio frequency links as equivalent links, while achieving coverage and switching, to provide more link options for multiple users. Therefore, the embodiments of the present application can first deploy a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication to support multi-user photoelectric fusion wireless communication and complete the preliminary architecture of the network.

[0041] Optionally, in an embodiment of the present application, deploying a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication includes: deploying a plurality of photoelectric fusion transmitters; and / or, deploying a single visible light transmitter or a single radio frequency transmitter at the same location or different locations.

[0042] It can be understood that, considering that the positions of users are random in a multi-user indoor scene and there is interference between different users, each optoelectronic fusion transmitter of the embodiment of the application can be deployed with an LED and an antenna, and the fusion receiver of each user is equipped with a PD and an antenna. The advantage of the optoelectronic fusion transmitter is that integration and switching between optoelectronic systems can be realized, thereby ensuring effective coverage. The optoelectronic fusion transmitter can be deployed on a ceiling for lighting and is convenient for obtaining a LoS (Line of Sight) link. In addition, the visible light and radio frequency transmitters can be deployed at the same position, which can reduce deployment costs and can be combined with an existing PLC (Power Line Communication).

[0043] In some embodiments, when deployment is performed, the optoelectronic fusion transmitter can be used, or a single visible light transmitter or a single radio frequency transmitter can be used, and the single visible light transmitter or the single radio frequency transmitter can be deployed at the same position or at different positions.

[0044] In step S102, according to channel state information of multiple users and data rate requirements, power constraints of multiple transmitters are used to optimize multiple user access and power allocation, to obtain an optimized result of multiple user access and an optimized result of power allocation.

[0045] As a possible implementation manner, as shown in Figure 2 Fig. 1 is a schematic diagram of a transmitter and a receiver of an optoelectronic fusion multi-user communication method according to an embodiment of the application. The embodiment of the application can be based on the communication characteristics of an optoelectronic fusion communication system, according to channel state information of multiple users and data rate requirements, based on power constraints of multiple transmitters, to optimize power allocation and multiple user access, to obtain an optimized result of multiple user access and an optimized result of power allocation, to focus on achievable rate and energy efficiency, and to propose a minimum requirement for the achievable rate to meet the quality of service, aiming to improve the communication performance of the optoelectronic fusion system.

[0046] Meanwhile, to cope with scenarios where power supply is inconvenient, the embodiment of the application can also fuse the energy efficiency of the system. For resource allocation of the optoelectronic fusion communication system, multiple aspects are involved, including power, bandwidth, time slot, etc., to realize power allocation optimization.

[0047] Optionally, in an embodiment of the present application, according to the channel state information and data rate requirement of multiple users, the multiple user access and power allocation are optimized based on the power constraints of multiple transmitters, to obtain the optimization results of the multiple user access and the optimization results of the power allocation, including: using the duplex technology of the radio frequency link to realize the uplink feedback of the channel state information and the data rate requirement of the multiple users, wherein the duplex technology of the radio frequency link includes frequency division duplex, time division duplex, and / or a combination of frequency division duplex and time division duplex.

[0048] The channel state information and the data rate requirement of the multiple users can use the duplex technology of the radio frequency link to realize uplink feedback, including but not limited to frequency division duplex, time division duplex, and / or a combination thereof.

[0049] Optionally, in an embodiment of the present application, according to the channel state information and data rate requirement of multiple users, the multiple user access and power allocation are optimized based on the power constraints of multiple transmitters, to obtain the optimization results of the multiple user access and the optimization results of the power allocation, including: selecting different visible light transmitters and radio frequency transmitters; or selecting different transmission links of the same optoelectronic fusion transmitter.

[0050] The multiple user access can be the selection of the access link by the multiple users, and different visible light transmitters and radio frequency transmitters can be selected, or the same optoelectronic fusion transmitter can be selected to realize the optimization of the multiple user access.

[0051] Optionally, in an embodiment of the present application, according to the channel state information and data rate requirement of multiple users, the multiple user access and power allocation are optimized based on the power constraints of multiple transmitters, to obtain the optimization results of the multiple user access and the optimization results of the power allocation, including: based on at least one of the total power constraint, the peak power constraint, and the average power constraint of the power constraint, to allocate the direct current power and / or the alternating current power.

[0052] It can be understood that, due to the large difference in the power processing of the optoelectronic system, and the limitation of the peak optical power, the average optical power, and the like by the illumination requirement, the power is more important than the achievable rate, wherein the power constraint can include but is not limited to the total power constraint, the peak power constraint, the average power constraint, and the like; the power allocation can refer to the allocation of the transmission power, including but not limited to the direct current power and the alternating current power.

[0053] Optionally, in an embodiment of the present application, according to the channel state information and data rate requirements of multiple users, the multi-user access and power allocation are optimized based on the power constraints of multiple transmitters to obtain the optimization results of multi-user access and power allocation, including: using one or more of the following algorithms: alternating iteration algorithm, mixed integer nonlinear programming algorithm, simulated annealing algorithm and genetic algorithm to optimize the communication performance, wherein the target of the communication performance optimization includes maximizing the total data rate of multiple users, maximizing the total energy efficiency of multiple users and maximizing the total energy efficiency given the data rate requirements of multiple users.

[0054] In actual execution, the method for optimizing the communication performance can include but is not limited to alternating iteration algorithm, mixed integer nonlinear programming algorithm, simulated annealing algorithm, genetic algorithm, etc., so as to use different algorithms for optimization based on different scenarios, thereby increasing the versatility of the embodiment of the present application.

[0055] Optionally, in an embodiment of the present application, the target of the communication performance optimization includes maximizing the total data rate of multiple users, maximizing the total energy efficiency of multiple users and / or maximizing the total energy efficiency given the data rate requirements of multiple users.

[0056] Specifically, the target of the communication performance optimization can include but is not limited to maximizing the total data rate of multiple users, maximizing the total energy efficiency of multiple users and maximizing the total energy efficiency given the data rate requirements of multiple users, etc., so as to improve the indoor multi-user wireless communication performance through fusion optimization.

[0057] In step S103, based on the optimization result of multi-user access, the signal required by each user is allocated to the corresponding optoelectronic fusion transmitter, and based on the optimization result of power allocation, the visible light signal and the radio frequency signal are transmitted according to the corresponding power gain, each user uses a light detector to receive the visible light signal, uses an antenna to receive the radio frequency signal, and reconstructs the original signal through digital signal processing.

[0058] In actual execution, the embodiment of the present application can allocate the signal required by each user to the corresponding optoelectronic fusion transmitter according to the optimization result of multi-user access, and transmit the visible light signal and the radio frequency signal according to the corresponding power gain according to the optimization result of power allocation, so that each user can use an antenna to receive the radio frequency signal after receiving the visible light signal using a light detector, and reconstruct the original signal through digital signal processing, thereby improving the overall performance of the fusion system, considering the optimization of achievable rate and energy efficiency, realizing joint power allocation between optoelectronic systems, breaking the barriers between heterogeneous subsystems and adapting to multiple reception scenarios.

[0059] Each user can be equipped with an optical detector and an antenna, or only an optical detector or an antenna; and the access modes of different users to the same transmitter include, but are not limited to, time division multiple access, frequency division multiple access, code division multiple access, space division multiple access, etc.

[0060] Optionally, in an embodiment of the present application, based on the optimization result of multi-user access, the required signal of each user is allocated to the corresponding optoelectronic fusion transmitter, and based on the optimization result of power allocation, the visible light signal and the radio frequency signal are transmitted according to the corresponding power gain, including: the visible light signal and the radio frequency signal adopt the same intermediate frequency band and unified digital signal processing to unify the physical layer, and are fused with the preset power line communication.

[0061] In some embodiments, the visible light signal and the radio frequency signal can adopt the same intermediate frequency band and unified digital signal processing to realize unified physical layer, and can be fused with the preset power line communication. For switching between optoelectronic systems, the embodiments of the present application can regard the visible light link and the radio frequency link as equivalent links, deploy a fusion network based on unified PHY (Physical, physical layer), and based on the same intermediate frequency and unified processing, users can receive fusion signals through a unified digital signal processing module. Therefore, switching is realized at the physical layer rather than the network layer, which can break down the barriers between different subsystems and reduce the pressure on network scheduling.

[0062] It should be noted that the preset power line communication can be selected by those skilled in the art according to the actual communication situation, and is not specifically limited here.

[0063] In addition, all optoelectronic fusion transmitters will affect all users within their coverage range, but each user only receives effective signals from one optoelectronic fusion transmitter. At the same time, the moving speed in the indoor communication scene is limited, so the optoelectronic channel between the transmitter and the receiver is weakly time-varying, and there is generally no problem of over time, and the uplink feedback of channel state information can be realized by using duplex technology.

[0064] In combination with Figures 2 to 6 As shown in the drawings, the working principle of the optoelectronic fusion multi-user communication method of the embodiments of the present application is described in detail in multiple embodiments.

[0065] As shown in the drawings, the embodiments of the present application can include the following steps: Figure 3

[0066] Step S301: Deploy multiple optoelectronic fusion transmitters to support multi-user optoelectronic fusion wireless communication.

[0067] The optoelectronic fusion transmitter can also be a single visible light transmitter or a single radio frequency transmitter, and the single transmitter can be deployed at the same location or at different locations. ​

[0068] Step S302: According to the channel state information and data rate requirement of multiple users, the power allocation and multi-user access are optimized based on the power constraints of multiple transmitters, aiming to improve the communication performance of the optical-electric hybrid system.

[0069] Among them, the multi-user channel state information and data rate requirement uses the uplink feedback based on the radio frequency link duplex technology, including but not limited to frequency division duplex, time division duplex and their combinations.

[0070] The power constraint includes but is not limited to total power constraint, peak power constraint, average power constraint, etc.; the power allocation refers to the allocation of transmission power, including but not limited to direct current power and alternating current power; the multi-user access refers to the selection of access links by multiple users, which can select different visible light transmitters and radio frequency transmitters, or select the same optical-electric hybrid transmitter.

[0071] The communication performance optimization includes but is not limited to alternating iteration algorithm, mixed integer nonlinear programming algorithm, simulated annealing algorithm, genetic algorithm, etc.; the communication performance optimization target includes but is not limited to maximizing the total data rate of multiple users, maximizing the total energy efficiency of multiple users, maximizing the total energy efficiency given the data rate requirement of multiple users, etc.

[0072] Figure 2 The principle schematic diagram of the transmitter and receiver of the optical-electric hybrid multi-user communication method of the embodiment of the application is shown.

[0073] Step S303: According to the optimization result of multi-user access, the required signal of each user is allocated to the corresponding optical-electric hybrid transmitter, and according to the optimization result of power allocation, the visible light signal and the radio frequency signal are transmitted according to the corresponding power gain.

[0074] Among them, the visible light signal and the radio frequency signal can use the same intermediate frequency band and unified digital signal processing to realize unified physical layer, and can be integrated with the preset power line communication.

[0075] Step S304: In actual application process, each user can use a light detector to receive a visible light signal, use an antenna to receive a radio frequency signal, and reconstruct the original signal through digital signal processing.

[0076] Among them, each user can be equipped with a light detector and an antenna, or only a light detector or an antenna; the way of different users accessing the same transmitter includes but is not limited to time division multiple access, frequency division multiple access, code division multiple access, space division multiple access, etc.

[0077] Embodiment one

[0078] Embodiment one can give the application of the embodiment of the present application in a communication system for broadband digital terrestrial broadcast. The system requires providing four-way downlink standard definition digital television broadcast services in a given bandwidth, and the method flow and transmission mode are described as follows:

[0079] S1: Deploy multiple single visible light transmitters and single radio frequency transmitters to support multi-user optoelectronic fusion wireless communication.

[0080] S2: According to the channel state information and data rate requirement of multi-user, based on the power constraint of multiple transmitters, the power allocation and multi-user access are optimized to improve the communication performance of the optoelectronic fusion system.

[0081] S3: The multi-user channel state information and data rate requirement uses frequency division duplex technology based on radio frequency link to realize uplink feedback; the alternating iteration algorithm is used to maximize the total data rate of multi-user.

[0082] S4: According to the optimization result of multi-user access, the required signal of each user is allocated to the corresponding optoelectronic fusion transmitter. The transmission service needs four-way standard definition digital television broadcast service transmission, then each signal frame is divided into four time domain subchannels, uplink time slots and signaling information, wherein each subchannel is responsible for transmitting one service; the uplink time slot provides conditions for the transmission and reception of uplink information; the signaling information is responsible for indicating the corresponding service according to the uplink signal feedback of the user.

[0083] The same intermediate frequency band and unified digital signal processing are used for the unified physical layer of visible light signal and radio frequency signal. For each digital television transmission sub-service in the subchannel, the modulation mode is as follows:

[0084] The system bandwidth is 8MHz, the channel bandwidth is also 8MHz, the radio signal carrier frequency is 634MHz, and the LED flicker speed is 10MHz. Referring to the Chinese digital television terrestrial broadcast standard DTMB (Digital Terrestrial Multimedia Broadcast), the analog front end uses time domain filtering shaping, the shaping filter is selected as SRRC filter, the roll-off factor is 0.05, the basic symbol rate is selected as 7.56MHz, and the basic symbol interval is (1 / 7.56)us≈0.1323us.

[0085] Considering that the randomization of the transmission digital signal is helpful for transmission information processing, the embodiment of the present application can scramble the transmission digital signal, and the scrambling code is a maximum length binary pseudo-random sequence, and the generation polynomial is defined as

[0086] G(x) = 1 + x 14 + x 15 ,

[0087] The initial phase definition of the sequence can be 100101010000000.

[0088] The scrambling result is encoded to obtain a code word. The encoding method that can be used in the embodiment of the application is forward error correction encoding, which is formed by cascading an outer code and an inner code, the outer code is a BCH code, and the inner code is an LDPC (7493, 3048) code with an equivalent encoding code rate of 0.4. The obtained code word is subjected to constellation mapping to generate a complex symbol corresponding to the code word, and the constellation mapping mode is 64QAM. Time domain interleaving is performed by convolution interleaving coding based on constellation symbols, and the time domain interleaving result and system information parameters form a frequency domain data block, each frequency domain data block is 3780 long, including 3744 data symbols and 36 system information parameter symbols. The frequency domain data block is subjected to 3780-point IDFT transformation to obtain a time domain data block.

[0089] TDS-OFDM is used as the framing technology, and a guard interval composed of a known auxiliary sequence and a preamble and a postamble thereof can be selected as the padding between time domain data blocks in the embodiment of the application, wherein the auxiliary sequence is a known PN sequence subjected to IDFT transformation and has a length of 255 symbols, the preamble and the postamble are cyclic extensions of the PN sequence, the preamble has a length of 82 symbols, the postamble has a length of 83 symbols, and the total length of the guard interval is 420 symbols. The time domain data blocks and the guard interval are combined into a first signal frame, in each first signal frame, a PN sequence with a different phase is used as the auxiliary sequence according to the time sequence signal of the current frame.

[0090] The framing manners of different transmitters are consistent, and all four paths of services are subjected to time domain framing according to control information, and a frame structure diagram can be as shown in Figure 4 .

[0091] Finally, according to the optimization result of the power allocation, different transmitters transmit the visible light signal and the radio frequency signal according to the corresponding power gain.

[0092] Each user uses a light detector to receive the visible light signal and uses an antenna to receive the radio frequency signal, and reconstructs the original signal through digital signal processing, in the embodiment one, each user is equipped with only a light detector or an antenna, and different users access the same transmitter in a time division multiple access manner.

[0093] Embodiment two

[0094] Embodiment two can give the application of the embodiment in the communication system of the broadband wireless digital communication facing the selectable service. The system requires to provide four-way downlink standard definition digital television broadcast service in the given bandwidth, and can adjust the services according to the uplink feedback of the user, the method flow and the transmission mode involved are described as follows:

[0095] S1: Deploy multiple single visible light transmitters and single radio frequency transmitters to support multi-user optoelectronic fusion wireless communication.

[0096] S2: According to the channel state information and data rate requirement of multi-user, based on the power constraint of multiple transmitters, the power allocation and multi-user access are optimized, aiming at improving the communication performance of the optoelectronic fusion system.

[0097] S3: The multi-user channel state information and data rate requirement uses the time division duplex technology based on the radio frequency link to realize the uplink feedback, and simultaneously feeds back the selection of the user to the service; the transmitter alternating current power is allocated, and the power constraint needs the total power constraint and the peak power constraint; the multi-user access selects different visible light transmitters and radio frequency transmitters; the simulated annealing algorithm is used to maximize the total energy efficiency of the multi-user.

[0098] S4: According to the optimization result of the multi-user access, the signal required by each user is allocated to the corresponding optoelectronic fusion transmitter. According to the indication in the signaling information, the service information required by each user can be obtained, and each transmitter extracts the corresponding time domain subchannel sub-service according to this, and for the service not required by the user, the blank time slot can be sent.

[0099] The transmission service needs to transmit four-way standard definition digital television broadcast service, then each signal frame is divided into four time domain subchannels, uplink time slots and signaling information, wherein each subchannel is responsible for transmitting a service; the uplink time slot provides conditions for the transmission and reception of uplink information; the signaling information is responsible for indicating the corresponding service according to the uplink signal feedback of the user, and needs to be adjusted according to the uplink feedback of the user.

[0100] The visible light signal and the radio frequency signal use the same intermediate frequency band and unified digital signal processing to realize unified physical layer, and are fused with the existing power line communication, and for each digital television transmission sub-service in the subchannel, the modulation mode can be as follows:

[0101] The system bandwidth is 30 MHz, the channel bandwidth is also 30 MHz, the radio signal carrier frequency is 634 MHz, and the LED flashing speed is 30 MHz. The analog front end adopts frequency domain subcarrier shaping to realize spectrum shaping. The basic symbol rate is selected as 30.00 MHz, the basic symbol interval (1 / 30.00) us is approximately 0.0333 us, and the effective signal bandwidth is 28 MHz, wherein the frequency domain subcarriers outside the effective bandwidth are used to carry zero symbols (i.e., virtual subcarriers).

[0102] Considering that randomization of the transmission digital signal helps transmission information processing, the embodiment of the application can scramble the transmission digital signal, and the scrambling code is a maximum length binary pseudo-random sequence, and the generation polynomial can be defined as:

[0103] G(x) = 1 + x 14 +x 15 ,

[0104] The initial phase of the sequence is defined as 100101010000000.

[0105] The scrambling code result is encoded to obtain a code word. The encoding method that can be used in the embodiment of the application is forward error correction encoding, which is formed by cascading an outer code and an inner code, the outer code is a BCH code, and the inner code is an LDPC code with a code rate of 0.5 and a code length of 64800 bits. After bit interleaving of the obtained code word, complex symbols corresponding to the code word are generated by constellation mapping, and the constellation mapping mode is 64QAM. Time domain interleaving adopts convolution interleaving coding based on constellation symbols, and the time domain interleaving result adds pilot subcarriers and virtual subcarriers at predetermined positions to form a frequency domain data block. Each frequency domain data block is 8192 long, of which the first 548 subcarriers are virtual subcarriers, and of the last 7644 subcarriers, 1 / 6 carries pilot symbols and 5 / 6 carries data symbols. The frequency domain data block is subjected to 8192-point IDFT transformation to obtain a time domain data block.

[0106] The embodiment of the application can adopt CP-OFDM as the framing technology, and selects cyclic extension of the time domain data block as the guard interval filling, and the total length of the guard interval is 512 symbols. The time domain data block and the guard interval are combined into a first signal frame.

[0107] The framing modes of different transmitters are consistent, and all four services are time domain framed according to control information, and a frame structure diagram is shown in Figure 4 .

[0108] Finally, according to the optimization result of power allocation, different transmitters send visible light signals and radio frequency signals according to the corresponding power gain.

[0109] Each user receives the visible light signal using a photodetector, receives the radio frequency signal using an antenna, and reconstructs the original signal through digital signal processing. In the second embodiment, each user is equipped with a photodetector and an antenna, and the way different users access the same transmitter is frequency division multiple access.

[0110] Embodiment three

[0111] Embodiment three gives an application of the embodiments of the present application in a communication system of broadband digital terrestrial broadcasting whose user demand changes over time. The system requires to provide four-way downlink standard definition digital television broadcasting services in a given bandwidth, and needs to meet the changing user data rate requirements. The method flow and transmission mode involved are described as follows:

[0112] S1: Deploy multiple optoelectronic fusion transmitters to support multi-user optoelectronic fusion wireless communication.

[0113] S2: According to the channel state information and data rate requirements of multiple users, optimize power allocation and multi-user access based on the power constraints of multiple transmitters, aiming to improve the communication performance of the optoelectronic fusion system.

[0114] S3: The channel state information and data rate requirements of multiple users are realized through uplink feedback based on radio frequency link frequency division duplex technology, and the data rate requirements of users need to be updated in each uplink feedback time slot; the transmitter exchange power is allocated, and the power constraints include total power constraint, peak power constraint and average power constraint; the same optoelectronic fusion transmitter is selected for multi-user access; genetic algorithm is used to maximize the total energy efficiency for given multi-user data rate requirements.

[0115] S4: According to the optimization results of multi-user access, allocate each user's required signal to the corresponding optoelectronic fusion transmitter. If the above transmission service needs to transmit four-way standard definition digital television broadcasting service, each signal frame is divided into four time domain subchannels, uplink time slots and signaling information. Each subchannel is responsible for transmitting one service; the uplink time slot provides conditions for the transmission and reception of uplink information; the signaling information is responsible for indicating the corresponding service according to the user's uplink signal feedback.

[0116] The visible light signal and the radio frequency signal use the same intermediate frequency band and unified digital signal processing to realize unified physical layer. For each digital television transmission sub-service in the subchannel, the modulation mode is the same as that in embodiment one.

[0117] Similarly, the data processing process, framing process, etc. of each transmitter are the same as those in embodiment one. Finally, according to the optimization results of power allocation, different transmitters transmit visible light signals and radio frequency signals according to the corresponding power gain.

[0118] Each user receives the visible light signal using a photodetector, receives the radio frequency signal using an antenna, and reconstructs the original signal through digital signal processing.

[0119] In the third embodiment, each user is equipped with a photodetector and an antenna, and different users access the same transmitter in a frequency division multiple access manner.

[0120] The fourth embodiment

[0121] As shown in the fourth embodiment, the device structure of the optoelectronic fusion multi-user communication method that can be used to perform the embodiments of the present application can be as shown in the specific network architecture diagram. Figure 5 Figure 6

[0122] The embodiments of the present application can include a transmitting part 501, a control part 502, a scheduling part 503, and a receiving part 504.

[0123] The transmitting part 501 deploys multiple optoelectronic fusion transmitters to support multi-user optoelectronic fusion wireless communication;

[0124] The control part 502 optimizes power allocation and multi-user access based on the power constraints of multiple transmitters according to the channel state information and data rate requirements of multiple users, aiming to improve the communication performance of the optoelectronic fusion system;

[0125] The scheduling part 503 allocates the required signal of each user to the corresponding optoelectronic fusion transmitter according to the optimization result of multi-user access, and transmits the visible light signal and the radio frequency signal according to the corresponding power gain according to the optimization result of power allocation;

[0126] Each user in the receiving part 504 receives the visible light signal using a photodetector, receives the radio frequency signal using an antenna, and reconstructs the original signal through digital signal processing.

[0127] The optoelectronic fusion multi-user communication method according to the embodiments of the present application can be designed and optimized in terms of network structure, communication demand, resource allocation, etc. Multiple optoelectronic fusion transmitters supporting multi-user optoelectronic fusion wireless communication are deployed, a unified physical layer framework is used to simplify switching, the optimization of achievable rate and energy efficiency is considered to improve the performance of the fusion system in multiple aspects, joint power allocation between optoelectronic systems is implemented to break down the barriers between heterogeneous subsystems, adapt to various receiving scenarios, improve the communication performance of the optoelectronic fusion system, and optimize resource scheduling of the optoelectronic fusion transmitter according to the optoelectronic channel state information and multi-user demand, thereby improving the achievable rate and energy efficiency in the presence of interference between multiple users. Thus, the technical problems in the related art that cannot balance the quality of service and the rate and energy efficiency of communication, and cannot reasonably allocate limited communication resources are solved. ​​

[0128] Secondly, the photoelectric fusion multi-user communication device according to the embodiment of the application is described with reference to the accompanying drawings.

[0129] Figure 7 is a block schematic diagram of the photoelectric fusion multi-user communication device according to the embodiment of the application.

[0130] As shown in Figure 7 , the photoelectric fusion multi-user communication device 10 comprises a deployment module 100, an optimization module 200 and a communication module 300.

[0131] Specifically, the deployment module 100 is configured to deploy a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication.

[0132] The optimization module 200 is configured to optimize multi-user access and power allocation based on power constraints of the plurality of transmitters according to channel state information and data rate requirements of the multi-user, to obtain an optimization result of the multi-user access and an optimization result of the power allocation.

[0133] The communication module 300 is configured to allocate a required signal of each user to a corresponding photoelectric fusion transmitter based on the optimization result of the multi-user access, and to transmit a visible light signal and a radio frequency signal according to a corresponding power gain based on the optimization result of the power allocation, each user receiving the visible light signal using a light detector and receiving the radio frequency signal using an antenna, and reconstructing an original signal through digital signal processing.

[0134] Optionally, in an embodiment of the application, the deployment module 100 comprises a first deployment unit and / or a second deployment unit.

[0135] The first deployment unit is configured to deploy the plurality of photoelectric fusion transmitters.

[0136] The second deployment unit is configured to deploy a single visible light transmitter or a single radio frequency transmitter at the same location or at different locations.

[0137] Optionally, in an embodiment of the application, the optimization module 200 comprises a feedback unit.

[0138] The feedback unit is configured to perform uplink feedback of the channel state information and the data rate requirements of the multi-user using a duplex technology of a radio frequency link, wherein the duplex technology of the radio frequency link comprises frequency division duplexing, time division duplexing and / or a combination of frequency division duplexing and time division duplexing.

[0139] Optionally, in an embodiment of the application, the optimization module 200 comprises a first selection unit or a second selection unit.

[0140] The first selection unit is configured to select different visible light transmitters and radio frequency transmitters.

[0141] a second selection unit configured to select different transmission links of the same optoelectronic fusion transmitter.

[0142] Optionally, in an embodiment of the present application, the optimization module 200 comprises a distribution unit.

[0143] The distribution unit is configured to distribute the direct current power and / or the alternating current power based on at least one of the total power constraint, the peak power constraint and the average power constraint of the power constraint.

[0144] Optionally, in an embodiment of the present application, the optimization module 200 comprises an optimization unit.

[0145] The optimization unit is configured to perform the communication performance optimization by using one or more of an alternating iterative algorithm, a mixed integer nonlinear programming algorithm, a simulated annealing algorithm and a genetic algorithm, wherein the target of the communication performance optimization comprises a multi-user total data rate maximization, a multi-user total energy efficiency maximization and / or a total energy efficiency maximization given a multi-user data rate requirement.

[0146] Optionally, in an embodiment of the present application, the target of the communication performance optimization comprises a multi-user total data rate maximization, a multi-user total energy efficiency maximization and / or a total energy efficiency maximization given a multi-user data rate requirement.

[0147] Optionally, in an embodiment of the present application, the communication module 300 comprises a processing unit.

[0148] The processing unit is configured to unify the physical layer by using the same intermediate frequency band and unified digital signal processing for the visible light signal and the radio frequency signal, and to fuse with the preset power line communication.

[0149] It should be noted that the foregoing explanation and description of the embodiment of the optoelectronic fusion multi-user communication method also applies to the optoelectronic fusion multi-user communication device of the embodiment, which will not be described here again.

[0150] The photoelectric fusion multi-user communication device provided by the embodiment of the present application can be designed and optimized in terms of network structure, communication demand, resource allocation, and the like, a plurality of photoelectric fusion transmitters supporting multi-user photoelectric fusion wireless communication are deployed, a unified physical layer framework is adopted to simplify switching, meanwhile, the optimization of achievable rate and energy efficiency is considered to improve the multi-aspect performance of the fusion system, joint power allocation between optoelectronic systems is implemented to break the barriers between heterogeneous subsystems, a plurality of receiving scenarios are adapted to, the communication performance of the photoelectric fusion system can be improved, the photoelectric fusion transmitters are optimally scheduled according to the photoelectric channel state information and multi-user demand, so that the achievable rate and energy efficiency are improved in the case of interference between multi-users. Thus, the technical problems in the related art that the service quality and the rate and energy efficiency of communication cannot be considered at the same time, and the reasonable allocation of limited communication resources is difficult to implement are solved.

[0151] Figure 8 The structure schematic diagram of the electronic device provided by the embodiment of the present application is provided. The electronic device can include:

[0152] The memory 801, the processor 802, and the computer program stored in the memory 801 and executable on the processor 802.

[0153] The processor 802 implements the photoelectric fusion multi-user communication method provided in the above embodiment when executing the program.

[0154] Further, the electronic device further includes:

[0155] The communication interface 803 is used for communication between the memory 801 and the processor 802.

[0156] The memory 801 is used for storing the computer program executable on the processor 802.

[0157] The memory 801 can include a high-speed RAM memory, and can also include a non-volatile memory such as at least one disk memory.

[0158] If the memory 801, the processor 802, and the communication interface 803 are independently implemented, the communication interface 803, the memory 801, and the processor 802 can be connected to each other through a bus and complete the communication therebetween. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation,Figure 8 Only one bus or bus type is used in some of the drawings to illustrate the architecture, the bus can be replaced by any other suitable type of electrical connection.

[0159] Optionally, if the memory 801, the processor 802 and the communication interface 803 are integrated on a chip, the memory 801, the processor 802 and the communication interface 803 can communicate with each other through an internal interface.

[0160] The processor 802 can be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to perform the operations of the embodiments of the application.

[0161] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in one or N embodiments or examples. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.

[0162] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0163] Any process or method descriptions in flow charts or otherwise described herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing the specified logic functions or processes, and the preferred embodiments of the application also include the possibility that the functions described can be implemented using hardware, software, or a combination of hardware and software, and that the preferred embodiments of the application include additional implementation possibilities, in which the functions can be performed in an order other than that shown or discussed, including functions performed in a substantially simultaneous manner, or in reverse order, as will be understood by those skilled in the art of the embodiments to which the application belongs.

[0164] The logic and / or steps represented in flow diagrams or otherwise described herein, for example, can be considered as a sequence of executable instructions, and can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions, or a combination of them.

[0165] It should be understood that portions of the application can be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, the N steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. As in another embodiment, if implemented in hardware, the hardware can be implemented using any or a combination of the following technologies, which are all well known in the art: a discrete logic circuit having logic gates for implementing logic functions upon data signals, an application specific integrated circuit having appropriate combinational logic gates, a PGA (Programmable Gate Array), an FPGA (Field Programmable Gate Array), etc.

Claims

1. A multi-user communication method integrating optoelectronics, characterized in that, Includes the following steps: Deploy multiple optoelectronic converged transmitters to support multi-user optoelectronic converged wireless communication; Based on the channel state information and data rate requirements of multiple users, and the power constraints of various transmitters, the multi-user access and power allocation are optimized to obtain the optimization results of multi-user access and power allocation. as well as Based on the optimization results of the multi-user access, the signal required by each user is allocated to the corresponding optoelectronic fusion transmitter, and based on the optimization results of the power allocation, visible light signals and radio frequency signals are transmitted according to the corresponding power gain. Each user uses a photodetector to receive the visible light signal and an antenna to receive the radio frequency signal, and reconstructs the original signal through digital signal processing. Based on the optimization results of the multi-user access, the required signals for each user are allocated to the corresponding optoelectronic fusion transmitter, and based on the optimization results of the power allocation, visible light signals and radio frequency signals are transmitted according to the corresponding power gain, including: using the same intermediate frequency band and unified digital signal processing for the visible light signals and the radio frequency signals to unify the physical layer, and integrating them with preset power line communication.

2. The method according to claim 1, characterized in that, The deployment of multiple optoelectronic fusion transmitters supporting multi-user optoelectronic fusion wireless communication includes: Deploy the aforementioned multiple optoelectronic fusion transmitters; And / or, deploy a single visible light transmitter or a single radio frequency transmitter in the same or different locations.

3. The method according to claim 1, characterized in that, Based on the channel state information and data rate requirements of multiple users, and considering the power constraints of various transmitters, multi-user access and power allocation are optimized, yielding optimized results for both multi-user access and power allocation, including: The uplink feedback of channel state information and data rate requirements of the multi-user is carried out using radio frequency link duplex technology, wherein the radio frequency link duplex technology includes frequency division duplex, time division duplex and / or a combination of frequency division duplex and time division duplex.

4. The method according to claim 1, characterized in that, The optimization of multi-user access and power allocation is performed based on the channel state information and data rate requirements of multiple users, and on the power constraints of various transmitters, to obtain the optimization results of multi-user access and power allocation, including: Choose different visible light transmitters and radio frequency transmitters; Alternatively, different transmission links can be selected from the same optoelectronic fusion transmitter.

5. The method according to claim 1, characterized in that, The optimization of multi-user access and power allocation is performed based on the channel state information and data rate requirements of multiple users, and on the power constraints of various transmitters, to obtain the optimization results of multi-user access and power allocation, including: The DC power and / or AC power are allocated based on at least one of the total power constraint, peak power constraint, and average power constraint mentioned above.

6. The method according to claim 1, characterized in that, The optimization of multi-user access and power allocation is performed based on the channel state information and data rate requirements of multiple users, and on the power constraints of various transmitters, to obtain the optimization results of multi-user access and power allocation, including: Communication performance is optimized using one or more of the following algorithms: alternating iterative algorithm, mixed integer nonlinear programming algorithm, simulated annealing algorithm, and genetic algorithm.

7. The method according to claim 6, characterized in that, The objectives of the communication performance optimization include maximizing the total data rate for multiple users, maximizing the total energy efficiency for multiple users, and / or maximizing the total energy efficiency for a given multi-user data rate requirement.

8. A multi-user communication device integrating optoelectronics, characterized in that, include: The deployment module is used to deploy multiple optoelectronic fusion transmitters that support multi-user optoelectronic fusion wireless communication; The optimization module is used to optimize multi-user access and power allocation based on the channel state information and data rate requirements of multiple users and the power constraints of various transmitters, so as to obtain the optimization results of multi-user access and power allocation. The communication module is used to allocate the required signal of each user to the corresponding optoelectronic fusion transmitter based on the optimization results of the multi-user access, and to transmit visible light signals and radio frequency signals according to the corresponding power gain based on the optimization results of the power allocation. Each user uses a photodetector to receive the visible light signal and an antenna to receive the radio frequency signal, and reconstructs the original signal through digital signal processing. Based on the optimization results of the multi-user access, the required signals for each user are allocated to the corresponding optoelectronic fusion transmitter, and based on the optimization results of the power allocation, visible light signals and radio frequency signals are transmitted according to the corresponding power gain, including: using the same intermediate frequency band and unified digital signal processing for the visible light signals and the radio frequency signals to unify the physical layer, and integrating them with preset power line communication.

9. An electronic device, characterized in that, include: A memory, a processor, and a computer program stored in the memory and executable on the processor, the processor executing the program to implement the optoelectronic fusion multi-user communication method as described in any one of claims 1-7.

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