Non-uniform beam space modulation method and system suitable for multi-antenna communication perception integration

A spatial modulation, non-uniform technology, applied in radio transmission systems, transmission systems, sustainable communication technologies, etc., can solve the problem of inability to increase the spectral efficiency, and achieve the effect of good sensing performance

Active Publication Date: 2022-07-08
SHANDONG UNIV
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the early multi-antenna ISAC system design, the beam of the system is fixed within a coherence time, and the information bit can only be carried by the data symbol, which cannot increase the spectral efficiency additionally

Method used

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  • Non-uniform beam space modulation method and system suitable for multi-antenna communication perception integration
  • Non-uniform beam space modulation method and system suitable for multi-antenna communication perception integration
  • Non-uniform beam space modulation method and system suitable for multi-antenna communication perception integration

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Effect test

Embodiment 1

[0069] A non-uniform beam spatial modulation method suitable for the integration of multi-antenna communication and perception, comprising:

[0070] Find the ISAC beam that satisfies both perception performance and communication performance;

[0071] Obtain the spectral efficiency of non-uniform beam spatial modulation by ISAC beam, and complete non-uniform beam spatial modulation;

[0072] Among them, find the ISAC beam that satisfies both perception performance and communication performance, including:

[0073] Constructing the communication transmit signal; Constructing the communication receiving signal; Constructing the upper bound of the integrated spectrum efficiency of communication sensing with non-uniform beam spatial modulation; Constructing the objective function of sensing performance; Obtaining the candidate beam matrix and beam that maximizes the spectral efficiency and the sensing performance Activation probability distribution.

Embodiment 2

[0075] A non-uniform beam spatial modulation method suitable for the integration of multi-antenna communication and perception according to Embodiment 1, the difference is:

[0076] The above non-uniform beam spatial modulation method is suitable for multiple-input multiple-output (Multiple-Input Multiple-Output, MIMO) communication systems, such as figure 1 As shown, the MIMO communication system includes N t root transmitter antenna and N r The root receiver antenna, the number of data streams to be transmitted is N s . The baseband processing unit is the digital processing unit in the base station that processes the received signal, the radio frequency link is the radio frequency processing unit in the base station, N RF Indicates the number of radio links.

[0077] At the transmitter, the information bit sequence b to be sent is divided into two parts: b 1 and b 2 ;

[0078] b 1 is the spatial modulation part, which is mapped to the dimension of N t ×N s the beam...

Embodiment 3

[0124] A non-uniform beam spatial modulation system suitable for the integration of multi-antenna communication and perception, comprising:

[0125] The ISAC beam obtaining unit is configured to obtain the ISAC beam satisfying both the sensing performance and the communication performance;

[0126] The non-uniform beam spatial modulation unit is configured to obtain the spectral efficiency of the non-uniform beam spatial modulation through the ISAC beam, and complete the non-uniform beam spatial modulation;

[0127] Among them, find the ISAC beam that satisfies both perception performance and communication performance, including:

[0128] Constructing the communication transmit signal; constructing the communication receiving signal; constructing the upper bound of the integrated spectrum efficiency of communication sensing with non-uniform beam spatial modulation; constructing the objective function of sensing performance; finding candidate beam matrices and beams that maximi...

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Abstract

The invention relates to a non-uniform beam space modulation method and system suitable for multi-antenna communication perception integration. The method comprises the following steps: solving an ISAC beam which simultaneously satisfies perception performance and communication performance; comprising the steps of constructing a communication transmitting signal; constructing a communication receiving signal; constructing an upper bound of communication sensing integrated spectrum efficiency of non-uniform beam space modulation; constructing a perceptual performance objective function; and solving a candidate beam matrix and beam activation probability distribution which enable the spectrum efficiency to be maximized and the sensing performance to be optimal. And the spectrum efficiency of non-uniform beam spatial modulation is solved through the ISAC beam. Under the condition that the same sensing performance requirement is met, the spectrum efficiency of the method is higher. By modifying the compromise factor between communication and sensing in the system, the beam pattern in the target area direction is closer to the reference beam pattern under the condition of meeting the same communication spectrum efficiency. And the method is superior to the existing beam design method in the aspects of communication and sensing performance.

Description

technical field [0001] The invention relates to a non-uniform beam spatial modulation method and system suitable for the integration of multi-antenna communication and perception, and belongs to the technical field of wireless communication. Background technique [0002] With the deployment of fifth-generation (5G) mobile communication networks, research on sixth-generation (6G) mobile communication networks has been put on the agenda worldwide. Integrating the perception capability into the future mobile communication network is one of the important directions for the current mobile communication network upgrade. As an essential feature, sensing will expand the capabilities of future mobile networks, which can facilitate many potential applications including intelligent transportation systems, smart factories and cities, health care, etc. [F.Liu,C.Masouros,A.P.Petropulu,H. Griffiths and L.Hanzo,"Joint Radar and Communication Design:Applications,State-of-the-Art,and the Roa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/0408H04B7/0413
CPCH04B7/0408H04B7/0413Y02D30/70H04B7/06952
Inventor 郭帅帅从定烟张海霞
Owner SHANDONG UNIV
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