System performance analysis of basic service set mutual listening system based on DCF protocol
Firstly,this paper represents the data transmission process and the Monte Carlo simulation process under the distributed coordination function(DCF).Secondly,to analyze the system performance under complex conditions,this paper improves the two-dimensional Markov model and establishes a performance analysis framework of channel access mechanism with throughput expectation as the system evaluation index.Finally,to evaluate the effectiveness and accuracy of the established framework,this paper takes two sets of actual parameters as the input of the framework to solve the throughput.Two sets of simulation experiments are carried out to obtain the influence of the physical layer rate on the single node throughput of the system.The simulation results show that the performance analysis framework of the channel access mechanism established in this paper has high accuracy in deriving throughput.The error is small compared with the simulation results of the simulator,which has scientific reference significance for guiding the actual network channel access.
communication technologydistributed coordination functionMarkov modelMonte Carlo simulation
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