Performance analysis and comparison of IEEE 802.11 distributed coordination function and improved schemes |
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引用本文: | SONG Jun,HUANG Jian and JIN Yan hua.Performance analysis and comparison of IEEE 802.11 distributed coordination function and improved schemes[J].保鲜与加工,2009(4):458-462. |
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作者姓名: | SONG Jun HUANG Jian and JIN Yan hua |
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作者单位: | College of Information Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China;;Automation College, Chongqing University, Chongqing 400030, P. R. China;College of Information Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, P. R. China; |
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摘 要: | To improve the media access control mechanism and enhance the performance of large scale wireless LANs, the distributed coordination function of IEEE802.11 standard and two typical improved schemes are studied extensively. Compared with the distributed coordination function, the fast collision resolution mechanism greatly enhances the throughput, but deteriorates the delay jitter and fairness of wireless LANs. The new self adaptive distributed coordination function markedly improves the delay jitter and fairness performance, while enhancing the throughput of wireless LANs to a certain degree. Hence, with further improvement, the new self adaptive distributed coordination function is more suitable for large scale wireless LANs for multimedia information transmission.
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关 键 词: | media access control distributed coordination function fast collision resolution new self adaptive distributed coordination function |
收稿时间: | 2008/12/10 0:00:00 |
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