A performance analysis method for cooperative spatial modulation system based on multi-relay forwarding

By establishing a system model in a multi-relay cooperative space modulation system and considering the incomplete channel state, a bit error rate performance analysis method is proposed, which solves the problem of difficult analysis of bit error rate performance under incomplete channel state, and realizes effective evaluation of system performance and closed expression of bit error rate.

CN114828149BActive Publication Date: 2025-03-25NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Patent Information

Application Number
CN202110122047.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-01-28
Publication Date
2025-03-25
Estimated Expiration
2041-01-28

AI Technical Summary

Technical Problem

In a multi-relay cooperative space modulation system, when the channel state is incomplete, it is difficult for the prior art to effectively analyze the bit rate performance.

Method used

A method of bit rate performance analysis of a cooperative space modulation system based on multi-relay forwarding is proposed. By establishing a system model, considering the incomplete channel state, the expression of the received signal is used to detect, calculate the moment generation function of the effective signal-to-noise ratio, and obtain an approximate expression of the system bit rate.

Benefits of technology

This method can give a closed expression of the system bit error rate under incomplete channel information, effectively evaluate the system performance, reduce simulation requirements, and improve the accuracy and efficiency of performance analysis.

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Abstract

The present invention discloses a performance analysis method for a collaborative spatial modulation system based on multi-relay forwarding; for a multi-relay collaborative spatial modulation system, a system model is established when the system has incomplete channel state information, and an effective signal-to-noise ratio of the system and a moment generating function calculation method for variables in the effective signal-to-noise ratio are given; on this basis, an error probability solution method based on a moment generating function is used to give a calculation expression for the average paired error probability of the system, and based on this, a calculation method for the average bit error rate of the system is further obtained; the performance analysis method proposed by the present invention can effectively evaluate the bit error rate performance of the system.
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