Cooperative Physical Layer Security Implementation Method Based on Optimal Layout of Interfering Nodes

Abstract

The present invention proposes a cooperative physical layer security implementation method based on the optimized layout of interference nodes, which is used for the technical problem that the received and received nodes have relatively small confidentiality capacity in the prior art, and the implementation steps are as follows: building a cooperative physical layer security system; Measure the channel gain between different nodes; calculate the channel capacity between nodes; calculate the sum of the secret capacity provided by the cooperative interference node; establish and solve the layout optimization model of the cooperative interference node based on the sum of the secret capacity; Solve the layout of the results and provide collaborative interference services to achieve collaborative physical layer security. The invention can be applied to different fields such as wireless communication security, cooperative interference and secret communication.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and relates to a method for implementing security of a cooperative physical layer, in particular to a method for implementing security of a wireless cooperative physical layer based on optimized layout of interference nodes, which can be applied to wireless communication security, cooperative interference, and confidential communication, etc. field. Background technique [0002] Due to the poor reliability of wireless communication links, the rapid growth of computing power of eavesdroppers, and the limited computing power of wireless terminals, key encryption security technology based on computational complexity can no longer guarantee the security of wireless communication networks. In order to make up for the shortcomings of key encryption security technology, physical layer security technology is proposed as an important means of wireless communication security. From the persp...

AI Technical Summary

Problems solved by technology

This method focuses on what kind of incentive strategies the cooperative jamming nodes adopt at different locations to maximize physical layer security. Although the method also considers the location of the cooperative jamming nodes, it does not focus on how to actively deploy cooperative jamming artificially. Nodes, optimally select the position of the cooperative interference node, resulting in low secrecy capacity that can be provided, and the effect on the realization of cooperative physical layer security is very limited

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