基于二维Markov chain的CSMA/CA协议的研究与改进

With the development and popularization of wireless local area network (WLAN) technology, the performance of the CSMA/CA protocol plays a decisive role in the level of network throughput when competing for shared channels. This paper first analyzes the process of CSMA/CA protocol under the condition of mutual listening, non-mutual listening and multi-BSS, then models and calculates performance metrics of the CSMA/CA protocol based on the two-dimensional Markov chain model, and finally puts forward the current shortcomings of the protocol and gives an improvement scheme through the analysis of the modeling process.