| 基于机会公平退避的无线传感网MAC协议 |
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| 引用本文： | 张俊豪,唐俊华,李生红. 基于机会公平退避的无线传感网MAC协议[J]. 通信技术, 2011, 44(12): 54-56,60 |
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| 作者姓名： | 张俊豪 唐俊华 李生红 |
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| 作者单位： | 上海交通大学电子信息与电气工程学院,上海,200240 |
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| 基金项目： | 国家自然科学基金(批准号:61071152;61071081); 国家973基础研究计划(批准号:2010CB731403;2010CB731406)资助 |
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| 摘 要： | 在无线传感网SMAC协议的基础上,提出了一种基于机会公平竞争退避机制的媒体接入控制协议(OF-MAC).该机制综合考虑节点当前的吞吐率和节点当前信道状态,引入了新的退避时间的计算方法,能够兼顾无线传感网节点间的公平性和网络吞吐率.实验表明,该方法在节点公平性和网络吞吐率方面都取得了较好的表现,且能够根据需要自由调整两者的性能.该方法只需要在SMAC协议的基础上做简单的改动,易于实现.
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| 关 键 词： | 公平性 机会 退避机制 媒体接入控制协议 无线传感网 |
A Wireless Sensor Network MAC Protocol based on Opportunistic Fairness Back-off Scheme |
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| ZHANG Jun-hao , TANG Jun-hua , LI Sheng-hong. A Wireless Sensor Network MAC Protocol based on Opportunistic Fairness Back-off Scheme[J]. Communications Technology, 2011, 44(12): 54-56,60 |
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| Authors: | ZHANG Jun-hao TANG Jun-hua LI Sheng-hong |
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| Affiliation: | ZHANG Jun-hao,TANG Jun-hua,LI Sheng-hong (SEIEE,Shanghai Jiaotong University,Shanghai 200240,China) |
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| Abstract: | A Medium Access Control(MAC) protocol,based on a new back-off scheme,a modification of SMAC for wireless sensor network is proposed.Both throughput and channel state are taken into account and a new method for computing back-off time is introduced into this new scheme.The simulation result shows that the new method for computing back-off time could achieve good performance in both node fairness and network throughput.The method proposed here only needs a minor modification of SMAC protocol and is easy in im... |
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| Keywords: | fairness opportunistic back-off scheme MAC WSN |
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