Adaptive direct sequence spread spectrum communication method based on particle swarm and genetic algorithm and system, and medium

Abstract

The invention discloses an adaptive direct sequence spread spectrum communication method based on a hybrid particle swarm genetic algorithm and a system thereof, and a medium, and the method comprises the steps: 1, constructing a spread spectrum factor condition vector and a spread spectrum factor expression based on a plurality of environment conditions and a plurality of communication conditions; 2, abstractly expressing a spreading factor condition vector as an address of a particle, taking a spreading factor expression as a fitness function, and solving an optimal spreading factor by adopting a hybrid particle swarm genetic algorithm; and 3, taking the optimal spread spectrum factor obtained by solving as the latest spread spectrum factor of both communication parties, and performing direct sequence spread spectrum communication on data needing to be transmitted. According to the method, the optimal spread spectrum factor can be quickly solved according to communication and environmental conditions, the anti-interference performance of a communication system is enhanced, and the bandwidth resource utilization efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to an adaptive direct sequence spread spectrum communication method, system and medium based on a hybrid particle swarm genetic algorithm. Background technique [0002] With the advancement of science and technology and the development of society, people's demand for high-speed video and image data transmission services continues to grow. At the same time, the security and reliability of communication have also received people's attention. The spread spectrum communication system can improve the confidentiality and anti-interference of the communication system. Among them, the direct sequence spread spectrum communication system has become a research hotspot because of its simple structure and easy implementation, and the design of the transceiver is the design of the direct sequence spread spectrum communication system. the key of. [0003] The block dia...

AI Technical Summary

Problems solved by technology

[0004] The current spread spectrum technology communicates with a fixed spread spectrum factor, and the system treats all receivers equally, regardless of the environment and communication conditions around the receiver, which will lead to poor spectrum allocation, partial communication blocking, and waste of bandwidth resources. And other issues

Especially in an environment with high interference, allocating bandwidth evenly with the same spreading factor will cause all receivers to fail to communicate normally

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