Mobile communication method for linear credible token

Abstract

The invention discloses a mobile communication method for a linear credible token, comprising the following specific steps: S1, setting an initialization parameter; S2, setting an optimal frequency offset between adjacent antennas according to the initialization parameter so as to obtain an antenna transmission frequency vector; S3, according to the optimal frequency offset, calculating actual carrier frequency of each antenna; S4, calculating a channel transmission vector of a target user and an eavesdropper according to the actual carrier frequency, respectively; and S5, according to the channel transmission vectors and the antenna transmission frequency vector, calculating an optimal beam forming vector through a matrix decomposition technology, and calculating the optimal safety rate of the system. The linear credible token provided by the invention is more flexible, and good safety communication performance can be achieved even in a very limited frequency offset range; the identity information security, the position information safety and the routing information safety of nodes in the network can be effectively protected; the system is simplified so that the system can reach atheoretical optimal value of the safety rate.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a mobile communication method of a linear trusted token. Background technique [0002] Due to its open wireless communication medium, node mobility and self-organizing characteristics, mobile ad hoc network ((MANET) is suitable for emergency occasions and temporary occasions, but it is also vulnerable to various security threats and attacks. Such as passive eavesdropping, data tampering and retransmission, identity forgery and denial of service, etc. Researchers have proposed many corresponding security solutions for the above-mentioned possible attacks. , non-repudiation and other aspects to provide security. [0003] As an effective means to ensure the security of wireless communication, physical layer security technology has gained more and more attention and research. Different from the traditional strategy of ensuring communication security through coding and encrypt...

AI Technical Summary

Problems solved by technology

Then, when the distance between the target user and the eavesdropper is very close, the frequency offset value between adjacent antennas is large, and the cumulative value of the linearly increasing frequency offset may exceed the upper limit of the frequency offset tolerated by the array, thus failing to achieve the expected effect, affecting the performance of physical layer security

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