IEEE 802.11 DCF差错帧模型的分析与仿真算法改进
doi: 10.3724/SP.J.1146.2006.01559
Analysis of IEEE 802.11 DCF Error Frame Model and Improvement of the Simulation Algorithm
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摘要: 该文提出了IEEE802.11DCF差错帧模型的概念,并在详细分析这一模型的基础上,指出了GloMoSim仿真环境中现有的DCF差错帧模型仿真算法存在的问题,然后严格按照DCF差错帧模型中的相关规约改进了该仿真算法。仿真与分析表明,与GloMoSim中现有的仿真算法相比,改进后的仿真算法能正确地模拟IEEE802.11DCF协议处理差错帧的相关规约,为仿真实验提供了更加可靠的结果。Abstract: In this paper, the concept of IEEE 802.11 DCF error frame model is proposed. This paper points out the error of the simulation algorithm of the DCF error frame model in GloMoSim in detail, based on the analysis of the model. To solve this problem, the algorithm is modified strictly according to the specifications of the DCF error frame model. The simulation results show that compared with the original simulation algorithm, the modified algorithm can simulate the related specifications of the DCF error frame model more correctly, thus can provide more reliable simulation results.
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