Cooperative node determination method and device of source node, electronic equipment and medium

Abstract

The embodiment of the invention provides a cooperative node determination method and device of a source node, electronic equipment and a medium. The cooperative node determination method comprises the following steps: according to a source node, a target node, an eavesdropping node and parameter information of each cooperative node of the source node, determining each candidate cooperative node corresponding to the source node and the target node when the security capacity of the source node and the target node is greater than a threshold value under the respective interference of each cooperative node through a secret communication theory; for each candidate cooperative node, according to a pre-established transmission performance function, respectively adjusting values of independent variables corresponding to the transmission performance functions determined by respective variables under the interference of the candidate cooperative node by utilizing an iterative algorithm under a preset condition to obtain a maximum value of each transmission performance function under the interference of the candidate cooperative node, and determining each maximum value as each candidate value; and determining the candidate cooperative node corresponding to the maximum value in the candidate values as the optimal cooperative node. According to the embodiment of the invention, the optimal cooperative node of the source node can be accurately determined.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method, device, electronic equipment and medium for determining a cooperative node of a source node. Background technique [0002] With the development of wireless communication technology, mobile communication plays an increasingly important role in people's work and life in today's society. Due to the inherent openness of wireless channels, wireless communication is more vulnerable to security attacks such as eavesdropping, tampering, and interference than wired communication. Therefore, it is necessary to add interference information of other nodes to the source node corresponding to the information sending end, that is, the sending information of the source node Increase the interference information of cooperative nodes. As the network presents dense and heterogeneous features, the nodes in the network belong to different systems. In order to achieve the opt...

AI Technical Summary

Problems solved by technology

Therefore, in the prior art, when multiple coordinating nodes are used to provide interference services for the source node, it becomes a relatively complicated problem to determine the power allocation for sending information among coordinating nodes

Then, how to determine the optimal cooperative node corresponding to the optimal performance of the source node in the communication process among many cooperative nodes has not yet given an effective solution in the field of information security transmission

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