具有竞争窗口的IEEE 802.11 DCF的最优性能研究

2011 International Conference on Broadband and Wireless Computing, Communication and Applications Pub Date : 2011-10-26 DOI:10.1109/BWCCA.2011.81

Chien-Erh Weng, Chun-Yin Chen, Chiung-Hsing Chen, Chien-Hunh Chen

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引用次数: 9

摘要

IEEE 802.11协议以最低的管理和维护成本在无线局域网中获得了全球的认可。为了使吞吐量最大化，站点必须花费很多时间来找出最佳争用窗口。本文对王氏模型进行了修正，考虑了通道繁忙时后关计数器的冻结。在改进后的模型中，可以很容易地获得给定网络规模下的最优争用窗口。最优争用窗口的选择是基于网络规模的。仿真结果表明，该算法的吞吐量与王氏算法相当。但是，最优争用窗口比王的少。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Optimal Performance Study of IEEE 802.11 DCF with Contention Window

The IEEE 802.11 protocol has achieved worldwide acceptance with WLANs with minimum management and maintenance costs. In order to maximize the throughput, stations had to spend many times to find out the best contention window. In this paper, we modified the Wang¡¦s model and took account of the freezing of the back off counter when channel is busy. In the modified model, it is easily to obtain the optimal contention window for a given network scale. The selection of optimal contention window is just based on the network scales. Simulation results showed that the throughput is the same as Wang¡¦s. But, the optimal contention window is less than Wang¡¦s.

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2011 International Conference on Broadband and Wireless Computing, Communication and Applications

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