| 一种基于IEEE802.16e的退避算法 |
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| 引用本文： | 邓波,张翠芳.一种基于IEEE802.16e的退避算法[J].成都大学学报(自然科学版),2009,28(2):133-135,145. |
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| 作者姓名： | 邓波 张翠芳 |
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| 作者单位： | 西南交通大学信息科学与技术学院,四川,成都,610031 |
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| 摘 要： | IEEE 802.16e使用二进制指数退避算法进行随机竞争接入,但该算法的冲突概率较高;二进制负指数退避算法有较小的冲突概率,但是接入时延却偏大.对退避算法进行了改进,并将两种算法结合起来应用于IEEE 802.16e系统中,仿真结果表明,使用改进的退避算法,系统在接入概率和接入时延方面的性能都较好,适用于IEEE 802.16e周期测距.
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| 关 键 词： | IEEEE802.16e 竞争窗口 退避 BNEB |
Backoff Algorithm Based on IEEE802.16e |
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| DENG Bo,ZHANG Cuifang.Backoff Algorithm Based on IEEE802.16e[J].Journal of Chengdu University (Natural Science),2009,28(2):133-135,145. |
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| Authors: | DENG Bo ZHANG Cuifang |
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| Institution: | School of Information Science and Technology;Southwest JiaoTong University;Chengdu 610031;China |
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| Abstract: | In IEEE 802.16e,binary exponential backoff(BEB) algorithm is used for random access,but BEB algorithm has poor performance of collision probability;binary negative-exponential backoff(BNEB) algorithm can achieve little collision probability while its access delay is bigger.In this research,BNEB algorithm was improved and an algorithm that combined BEB and BNEB was applied to IEEE 802.16e system.Simulation results show that the new algorithm gets better performance of both collision probability and access de... |
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| Keywords: | IEEE 802 16e BNEB |
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