A communication method for a switchable optical and electrical network

Abstract

The present invention discloses a communication method for a switchable optical and electrical network, belonging to the field of network signal transmission, including: constructing an optical transmission utility model according to the signal transmission parameters of the optical network architecture, calculating the optical transmission utility during the historical synchronous transmission of optical signals, screening high-quality optical signal transmission processes, and establishing a reference data set of optical transmission utility; similarly, establishing a reference data set of electrical transmission utility; evaluating the applicability of the transmission method according to the traffic volume of network signals, constructing a matching model for network signal transmission based on the optical transmission utility model and the electrical transmission utility model, and formulating the transmission method of network signals based on the applicability of the transmission method. The present invention can maximize the efficiency of communication network transmission, effectively enhance the stability of the communication transmission process, adapt to future complex communication scenarios, and has great application and promotion value.

Description

Technical Field

[0001] The present invention relates to the field of network signal transmission, and particularly to a communication method for a switchable optical and electrical network. Background Art

[0002] Optical communication is a communication method based on optical principles for information transmission. It uses light as the carrier for information transmission, converts the information signal into an optical signal for transmission by modulating the characteristics of the wavelength, frequency, and phase of the light, and then converts the optical signal into an electrical signal for decoding and processing. Optical communication has the advantages of high transmission speed, large bandwidth, anti-interference, and security, and has been widely used in various fields.

[0003] Electrical communication is a communication method that uses linear or tubular materials as the channel transmission medium or the medium interface for communication. That is, a communication method with a guided wave as the main transmission mode of signal energy. It can transmit voice, text, data, images, etc. It has high transmission quality, good confidentiality, and the signal is not easily interfered with or intercepted.

[0004] For fields that are suitable for both optical communication and electrical communication, it is often necessary to establish an optical network architecture and an electrical network architecture simultaneously for different network signals to select, in order to match different user needs. However, the switching strategy of the existing hybrid network transmission strategy is simple, often based on fixed thresholds or simple rules, difficult to cope with complex and dynamic network environments, unable to give full play to the respective advantages of optical and electrical signal transmissions, resulting in resource waste and communication quality fluctuations. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention provides a communication method for a switchable optical and electrical network, formulating a reasonable and efficient switching strategy for the optical network architecture and the electrical network architecture according to the different signal transmission characteristics of optical communication and electrical communication, ensuring high quality and high efficiency of network signal transmission.

[0006] In order to achieve the above invention purpose, the technical solution adopted by the present invention is as follows:

[0007] Provide a communication method for a switchable optical and electrical network, which includes:

[0008] Step S1: Construct an optical transmission utility model according to the signal transmission parameters of the optical network architecture, calculate the optical transmission utility during the historical synchronous transmission of optical signals, and screen high-quality optical signal transmission processes to establish a reference data set of optical transmission utility;

[0009] Step S2: Construct an electrical transmission utility model according to the signal transmission parameters of the electrical network architecture, calculate the electrical transmission utility during the historical simultaneous transmission of electrical signals, and screen high-quality electrical signal transmission processes to establish a reference data set of electrical transmission utility;

[0010] Step S3: Evaluate the applicability of the transmission mode according to the traffic volume of the network signal, construct a matching model for network signal transmission based on the optical transmission utility model and the electrical transmission utility model, and formulate the network signal transmission mode based on the applicability of the transmission mode.

[0011] Further, step S1 includes:

[0012] Step S11: Construct an optical transmission utility model according to the signal transmission parameters of the optical network architecture , and calculate the optical transmission utility during the historical synchronous transmission of optical signals ;

[0013] ;

[0014] Among them, is the signal traffic volume set during the historical synchronous transmission of optical signals, n is the number of the optical signal, is the optical signal n 's traffic volume, is the transmission delay set of optical signals during the historical synchronous transmission of optical signals, is the optical signal n 's transmission delay, is the signal-to-noise ratio data set of optical signals during the historical synchronous transmission of optical signals, is the signal-to-noise ratio of the optical signal n , represents taking the maximum value, represents taking the minimum value,

[0015] is the maximum carrying traffic volume designed for the optical network architecture, is the optimal signal-to-noise ratio designed for the optical network architecture, are the influence weight coefficients of the optical signal transmission traffic volume, delay, and signal-to-noise ratio on the optical transmission utility respectively;

[0016] Step S12: Obtain the optical transmission utility data set of each historical synchronous transmission process of optical signals , m is the number of historical synchronous transmission processes of optical signals, is the optical transmission utility of the m th historical synchronous transmission process of optical signals;

[0017] Step S13: Calculate the ideal optical transmission utility during the optical signal synchronous transmission process according to the ideal signal traffic volume , delay and signal-to-noise ratio ;

[0018] ;

[0019] Step S14: Obtain the ideal optical transmission utility during each historical optical signal synchronous transmission process , and calculate the difference in optical transmission utility , and compare it with the set optical transmission utility difference threshold ;

[0020] If , then determine that this optical signal synchronous transmission process is a poor optical signal transmission process; if , then determine that this optical signal synchronous transmission process is a high-quality optical signal transmission process;

[0021] Step S15: Extract the optical transmission utilities corresponding to all high-quality optical signal transmission processes, and construct a reference data set of optical transmission utilities , n is the number of high-quality optical signal transmission processes, is the reference data set in the n th optical transmission utility.

[0022] Furthermore, Step S2 includes:

[0023] Step S21: Construct an electrical transmission utility model according to the signal transmission parameters of the electrical network architecture , and calculate the electrical transmission utility during the historical electrical signal simultaneous transmission process ;

[0024] ;

[0025] Among them, is the electrical signal bit error rate set during the historical electrical signal simultaneous transmission process, p is the electrical signal number corresponding to each subcarrier, is the electrical signal p bit error rate, is the electrical signal distortion degree set during the historical electrical signal simultaneous transmission process, is the distortion degree of the electrical signal p , is the electrical signal attenuation rate set during the historical electrical signal simultaneous transmission process, is the electrical signal p attenuation rate, is the optimal bit error rate designed for the electrical network architecture, is the optimal attenuation rate designed for the electrical network architecture, is the optimal distortion degree designed for the electrical network architecture, are the influence weight coefficients of the electrical signal transmission distortion degree, bit error rate, and attenuation rate on the electrical transmission utility respectively;

[0026] Step S22: Obtain the electric transmission utility dataset for each historical simultaneous electric signal transmission process , p where is the number of historical simultaneous electric signal transmission processes, p and

[0027] Step S23: Calculate the ideal electric transmission utility according to the ideal distortion degree , bit error rate and attenuation rate in each historical simultaneous electric signal transmission process;

[0028] ;

[0029] Step S24: Obtain the ideal electric transmission utility in each historical simultaneous electric signal transmission process, calculate the difference in electric transmission utility, and compare it with the set threshold for the difference in electric transmission utility;

[0030] If , then determine that this simultaneous electric signal transmission process is a poor-quality electric signal transmission process; if , then determine that this simultaneous electric signal transmission process is a high-quality electric signal transmission process;

[0031] Step S25: Extract the electric transmission utilities corresponding to all high-quality electric signal transmission processes and construct a reference dataset for the electric transmission utility, q where is the number of high-quality electric signal transmission processes, and q is the

[0032] th electric transmission utility in the reference dataset.

[0033] Furthermore, Step S3 includes: Step S31: Evaluate the applicability of the transmission method according to the traffic volume

[0034] of the network signal; If

[0035] If , then the network signal needs to use both the optical network architecture and the electric network architecture for signal transmission, and execute Steps S32 - S34;

[0036] Step S32: Based on the optical transmission utility model and the electrical transmission utility model construct a matching model for network signal transmission ;

[0037] Step S33: Input the delay , signal-to-noise ratio , distortion degree , bit error rate and attenuation rate required by the user during the network signal transmission process into the matching model to output the traffic part that needs to be transmitted by the matched optical network architecture and the traffic part that needs to be transmitted by the electrical network architecture ;

[0038] Step S34: Divide the network signal into two parts according to the size of the traffic and , transmit the traffic part using the optical network architecture, and transmit the traffic part using the electrical network architecture;

[0039] Step S35: Input the size of the network signal traffic as well as the delay , signal-to-noise ratio , distortion degree , bit error rate and attenuation rate required by the user into the optical transmission utility model and the electrical transmission utility model respectively to calculate the optical transmission utility of the network signal transmitted using the optical network architecture and the electrical transmission utility of the part transmitted using the electrical network architecture ;

[0040] Step S36: If there exists , then switch the network signal transmission channel to the optical network architecture and transmit the network signal using the optical network architecture;

[0041] If , then switch the network signal transmission channel to the electrical network architecture and transmit the network signal using the electrical network architecture;

[0042] If , then execute Step S32 - Step S34.

[0043] Furthermore, the matching model is:

[0044] ;

[0045] Among them, are two parts into which the traffic of the network signal is split, represents taking any value from the reference data set and represents taking any value from the reference data set and

[0046] The beneficial effects of the present invention are as follows: Based on the optical transmission utility and electrical transmission utility of historical transmission signals in the optical network architecture and electrical network architecture as references, the selection and switching strategies of the optical network architecture and electrical network architecture are constructed. By using the optimal matching method, a suitable and accurate transmission scheme is provided for the transmission of network signals using electrical network transmission and / or optical network transmission. The efficiency of communication network transmission is maximized, the stability of the communication transmission process can be effectively enhanced, and it can adapt to future complex communication scenarios, which has great application and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 is a flowchart of a communication method for a switchable optical and electrical network. DETAILED DESCRIPTION OF THE INVENTION

[0048] The following describes the specific embodiments of the present invention to facilitate those skilled in the art of the present technology to understand the present invention. However, it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art of the present technology, as long as various changes are within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are within the scope of protection.

[0049] As Figure 1 shown, a communication method for a switchable optical and electrical network, based on a switchable optical and electrical network system, includes an optical network architecture, an electrical network architecture, and a network selection module;

[0050] The optical network architecture realizes synchronous transmission of multi-wavelength optical signals through a single optical fiber;

[0051] The electrical network architecture divides the transmission frequency band into multiple subcarriers, and data of different users are simultaneously transmitted on different subcarriers;

[0052] The network selection module monitors the data information of the network signal and formulates a transmission decision for the network information transmission process, and switches and selects the network signal transmission channels between the optical network architecture and the electrical network architecture according to the transmission decision;

[0053] The communication method includes:

[0054] Step S1: Construct an optical transmission utility model based on the signal transmission parameters of the optical network architecture, calculate the optical transmission utility during the historical synchronous transmission of optical signals, screen the high-quality optical signal transmission processes, and establish a reference data set for the optical transmission utility. Step S1 specifically includes:

[0055] Step S11: Construct an optical transmission utility model based on the signal transmission parameters of the optical network architecture , calculate the optical transmission utility during the historical synchronous transmission of optical signals ;

[0056] ;

[0057] Among them, is the signal traffic set during the historical synchronous transmission of optical signals, n is the number of the optical signal, is the optical signal n 's traffic, is the set of transmission delays of optical signals during the historical synchronous transmission of optical signals, is the optical signal n 's transmission delay, is the set of signal-to-noise ratio data of optical signals during the historical synchronous transmission of optical signals, is the signal-to-noise ratio of the optical signal n , represents taking the maximum value, represents taking the minimum value,

[0058] is the maximum carrying capacity designed for the optical network architecture, is the optimal signal-to-noise ratio designed for the optical network architecture, are the influence weight coefficients of the optical signal transmission traffic, delay, and signal-to-noise ratio on the optical transmission utility, generally taking respectively;

[0059] The signal-to-noise ratio is the ratio of the optical signal power to the noise power within the limited bandwidth of the optical signal, and it is one of the important indicators to measure the performance of the optical network. The smaller the signal-to-noise ratio, the better; the transmission traffic represents the signal transmission ability, and the larger the transmission traffic, the stronger the optical signal transmission ability; the delay refers to the time required for the signal to travel from the sending end to the receiving end, and it is also an important indicator reflecting the performance of the optical fiber. In this embodiment, the optical signal transmission traffic, delay, and signal-to-noise ratio are used as parameters to evaluate whether the optical signal transmission process is high-quality.

[0060] Step S12: Obtain the optical transmission utility data set for each historical synchronous transmission process of optical signals , m is the number of historical synchronous transmission processes of optical signals, is the historical mOptical transmission utility of the secondary optical signal synchronous transmission process;

[0061] Step S13: Calculate the ideal optical transmission utility in the optical signal synchronous transmission process according to the ideal signal traffic , delay and signal-to-noise ratio in the optical signal synchronous transmission process; ;

[0062] ;

[0063] Step S14: Obtain the ideal optical transmission utility in each historical optical signal synchronous transmission process , calculate the difference in optical transmission utility , and compare it with the set optical transmission utility difference threshold ;

[0064] If , it is determined that this optical signal synchronous transmission process is a poor-quality optical signal transmission process; if , it is determined that this optical signal synchronous transmission process is a high-quality optical signal transmission process;

[0065] Step S15: Extract the optical transmission utilities corresponding to all high-quality optical signal transmission processes, and construct a reference data set of optical transmission utilities , n is the number of high-quality optical signal transmission processes, is the reference data set in the n th optical transmission utility. The reference data set contains all high-quality optical signal transmission processes, providing reference data for the selection and matching of subsequent network signal transmission methods.

[0066] Step S2: Construct an electrical transmission utility model according to the signal transmission parameters of the electrical network architecture, calculate the electrical transmission utility in the historical simultaneous electrical signal transmission process, and screen high-quality electrical signal transmission processes to establish a reference data set of electrical transmission utilities. Step S2 specifically includes:

[0067] Step S21: Construct an electrical transmission utility model according to the signal transmission parameters of the electrical network architecture , calculate the electrical transmission utility in the historical simultaneous electrical signal transmission process ;

[0068] ;

[0069] Among them, is the set of electrical signal error rates in the historical simultaneous electrical signal transmission process, p is the electrical signal number corresponding to each subcarrier, is an electrical signal p is the bit error rate of is the set of distortion degrees of the electrical signal during the simultaneous transmission of historical electrical signals, is an electrical signal p is the distortion degree of is the set of attenuation rates of the electrical signal during the simultaneous transmission of historical electrical signals, is an electrical signal p is the attenuation rate of is the optimal bit error rate for the design of the electrical network architecture, is the optimal attenuation rate for the design of the electrical network architecture, is the optimal distortion degree for the design of the electrical network architecture, are the influence weight coefficients of the distortion degree, bit error rate, and attenuation rate of the electrical signal transmission on the electrical transmission utility respectively;

[0070] During the transmission of electrical signals, it is vulnerable to external interferences, such as electromagnetic interference, etc., resulting in problems such as signal distortion and increased bit error rate. At the same time, the electrical signal is also more likely to be attenuated during the transmission process. Therefore, in this embodiment, the distortion degree, bit error rate, and attenuation rate are used as parameters to evaluate the quality of electrical signal transmission.

[0071] Step S22: Obtain the electrical transmission utility data set for each historical simultaneous transmission process of electrical signals , p is the number of historical simultaneous transmission processes of electrical signals, is the historical p th electrical transmission utility during the simultaneous transmission process of electrical signals;

[0072] Step S23: Calculate the ideal electrical transmission utility according to the ideal distortion degree , bit error rate and attenuation rate during each historical simultaneous transmission process of electrical signals;

[0073] ;

[0074] Step S24: Obtain the ideal electrical transmission utility during each historical simultaneous transmission process of electrical signals, calculate the difference of the electrical transmission utility, and compare it with the set electrical transmission utility difference threshold ;

[0075] If , it is determined that this simultaneous transmission process of electrical signals is a poor-quality electrical signal transmission process; if , it is determined that this simultaneous transmission process of electrical signals is a high-quality electrical signal transmission process;

[0076] Step S25: Extract the electrical transmission utilities corresponding to all high-quality electrical signal transmission processes, and construct a reference data set of electrical transmission utilities , q is the number of high-quality electrical signal transmission processes, is the reference data set in the q th electrical transmission utility. The reference data set contains all high-quality electrical signal transmission processes, providing reference data for the subsequent selection and matching of network signal transmission methods.

[0077] Step S3: Evaluate the applicability of the transmission method according to the traffic volume of the network signal, construct a matching model for network signal transmission based on the optical transmission utility model and the electrical transmission utility model, and formulate the network signal transmission method based on the applicability of the transmission method. Step S3 specifically includes:

[0078] Step S31: Evaluate the applicability of the transmission method according to the traffic volume of the network signal ;

[0079] If , the network signal needs to use both the optical network architecture and the electrical network architecture for signal transmission, and execute Steps S32 - S34;

[0080] If , the network signal needs to select either the optical network architecture or the electrical network architecture for signal transmission, and execute Steps S35 - S36;

[0081] Step S32: Construct a matching model for network signal transmission based on the optical transmission utility model and the electrical transmission utility model ; ;

[0082] ;

[0083] Among them, is the two parts into which the traffic volume of the network signal is split, represents taking any value from the reference data set , represents taking any value from the reference data set ;

[0084] Step S33: Input the delay , signal-to-noise ratio , distortion degree , bit error rate and attenuation rate required by the user during the network signal transmission process into the matching model and output the traffic part that needs to be transmitted by the optical network architecture after matching and the traffic part that the electrical network architecture needs to transmit ;

[0085] Step S34: Divide the network signal into two parts according to the size of the traffic and , and use the optical network architecture to transmit the traffic part and use the electrical network architecture to transmit the traffic part ;

[0086] Step S35: Input the traffic size of the network signal , as well as the latency required by the user , signal-to-noise ratio , distortion degree , bit error rate and attenuation rate into the optical transmission utility model and the electrical transmission utility model respectively, and calculate the optical transmission utility of the network signal transmitted using the optical network architecture and the electrical transmission utility of the part transmitted using the electrical network architecture ;

[0087] Step S36: If there is , then switch the network signal transmission channel to the optical network architecture and use the optical network architecture to transmit the network signal;

[0088] If , then switch the network signal transmission channel to the electrical network architecture and use the electrical network architecture to transmit the network signal;

[0089] If , then execute Step S32 - Step S34.

[0090] Based on the optical transmission utility and electrical transmission utility of historical transmission signals in the optical network architecture and electrical network architecture as references, the present invention constructs a selection and switching strategy for the optical network architecture and electrical network architecture. Using the optimal matching method, it provides a suitable and accurate transmission scheme for the transmission of network signals using electrical network transmission and / or optical network transmission. It maximizes the efficiency of communication network transmission, can effectively enhance the stability of the communication transmission process, adapt to future complex communication scenarios, and has great application and promotion value.

Claims

1. A communication method for a switchable optoelectronic network, characterized in that: include: Step S1: construct an optical transmission utility model according to the signal transmission parameters of the optical network architecture, calculate the optical transmission utility of the historical optical signal synchronous transmission process, select high-quality optical signal transmission processes, and establish a reference data set of optical transmission utility; Step S2: constructing an electric transmission utility model according to the signal transmission parameters of the electric network architecture, calculating the electric transmission utility of the historical electric signal transmission process, and selecting the high-quality electric signal transmission process to establish a reference data set of electric transmission utility; Step S3: evaluating the applicability of the transmission mode according to the flow size of the network signal, constructing a matching model for network signal transmission based on the optical transmission utility model and the electrical transmission utility model, and formulating the transmission mode of the network signal based on the applicability of the transmission mode; The step S1 comprises: Step S11: Constructing an optical transmission utility model based on the signal transmission parameters of the optical network architecture , calculate the optical transmission utility of the historical optical signal during synchronous transmission ; ； in, is the signal flow set during the synchronous transmission of historical optical signals, n is the number of the optical signal, For optical signals n of traffic, is the set of transmission delays of the optical signal during the synchronous transmission of the historical optical signal, For optical signals n The transmission delay, is the data set of the signal-to-noise ratio of the optical signal during the synchronous transmission of the historical optical signal. For optical signals n The signal-to-noise ratio, Indicates taking the maximum value, Indicates taking the minimum value, The maximum carrying capacity designed for the optical network architecture, Optimal signal-to-noise ratio designed for optical network architectures, are the weight coefficients of the optical signal transmission flow, delay and signal-to-noise ratio on the optical transmission utility; Step S12: Obtaining the optical transmission utility data set of each historical optical signal synchronous transmission process , m is the number of historical optical signal synchronous transmission processes, For the history m The optical transmission utility of the synchronous transmission process of sub-optical signals; Step S13: Calculate the ideal signal flow rate during the synchronous transmission process according to the historical optical signal ,Delay and signal-to-noise ratio Calculate the ideal optical transmission efficiency during the synchronous transmission of optical signals ; ； Step S14: Obtaining the ideal optical transmission utility during each optical signal synchronous transmission in history , and calculate the difference in light transmission efficiency and set the optical transmission utility difference threshold Make comparisons; like , then the optical signal synchronous transmission process is determined to be a poor quality optical signal transmission process; if , then the optical signal synchronous transmission process is determined to be a high-quality optical signal transmission process; Step S15: extract the optical transmission utility corresponding to all high-quality optical signal transmission processes and construct a reference data set of optical transmission utility , n is the number of high-quality optical signal transmission processes, For reference dataset Middle n A light transmission utility; The step S2 comprises: Step S21: Constructing an electric transmission utility model according to the signal transmission parameters of the electric network architecture , calculate the electrical transmission utility of the historical electrical signal during simultaneous transmission ; ； in, is the set of bit error rates of electrical signals during the simultaneous transmission of historical electrical signals, p is the electrical signal number corresponding to each subcarrier, For electrical signals p The bit error rate, is the set of distortions of the electrical signals during the simultaneous transmission of the historical electrical signals, For electrical signals p The distortion, is the set of attenuation rates of the electrical signals during the simultaneous transmission of historical electrical signals, For electrical signals p The decay rate, Optimal bit error rate designed for electrical network architecture, The optimal attenuation rate designed for the electrical network architecture, Optimal distortion designed for electrical network architecture, are the influence weight coefficients of electrical signal transmission distortion, bit error rate and attenuation rate on electrical transmission utility; Step S22: Obtaining the electrical transmission utility data set of each historical electrical signal simultaneous transmission process , p is the number of simultaneous transmission processes of historical electrical signals, For the history p The electrical transmission effect of the simultaneous transmission process of electrical signals; Step S23: According to the ideal distortion degree of each electrical signal transmission process in history , bit error rate and decay rate Calculating ideal electrical transmission utility ; ； Step S24: Obtaining the ideal electrical transmission utility during each simultaneous transmission of electrical signals in history , and calculate the difference in electrical transmission utility , and the electrical transmission utility difference threshold set Make comparisons; like , then the simultaneous transmission process of the electric signal is determined to be a poor-quality electric signal transmission process; if , then the simultaneous transmission process of the electric signal is determined to be a high-quality electric signal transmission process; Step S25: extract the electrical transmission utilities corresponding to all high-quality electrical signal transmission processes and construct a reference data set of electrical transmission utilities , q The number of high-quality electrical signal transmission processes, For reference dataset Middle q An electrical transmission utility; The step S3 comprises: Step S31: Based on the flow rate of the network signal Assess the suitability of the transmission method; like , the network signal needs to use the optical network architecture and the electrical network architecture to transmit the signal at the same time, and execute steps S32 to S34; like , the network signal needs to select an optical network architecture or an electrical network architecture for signal transmission, and execute steps S35-S36; Step S32: Based on the optical transmission utility model and power transmission utility model Constructing a matching model for network signal transmission ; Step S33: The delay required by the user during the network signal transmission process , signal-to-noise ratio , Distortion , bit error rate and decay rate Input matching model Output the traffic that needs to be transmitted by the matched optical network architecture The traffic that needs to be transmitted by the Hedian network architecture ; Step S34: Divide the network signal into two parts according to the size of the traffic and , the flow part Using optical network architecture for transmission and traffic part Using electrical network architecture for transmission; Step S35: The flow rate of the network signal and user-requested delays , signal-to-noise ratio , Distortion , bit error rate and decay rate Input the optical transmission utility model separately and power transmission utility model In this paper, the optical transmission efficiency of network signals transmitted using optical network architecture is calculated. and the utility of electricity transmission using the transmission part of the electricity network architecture ; Step S36: If it exists , then the network signal transmission channel is switched to the optical network architecture, and the network signal is transmitted using the optical network architecture; like , then the network signal transmission channel is switched to the electrical network architecture, and the electrical network architecture is used to transmit the network signal; like , then execute step S32 to step S34; The matching model for: ； in, To split the network signal traffic into two parts, Represents the reference dataset Take any value in Represents the reference dataset Take any value in .

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