| 一种基于IEEE 802.16d的最优竞争接入调度策略* |
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| 引用本文： | 姚志平,张琳,刘郁恒. 一种基于IEEE 802.16d的最优竞争接入调度策略*[J]. 计算机应用研究, 2010, 27(6): 2229-2231. DOI: 10.3969/j.issn.1001-3695.2010.06.066 |
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| 作者姓名： | 姚志平 张琳 刘郁恒 |
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| 作者单位： | 1. 中山大学,电子与通信工程系,广州,510275
2. 广东省电信规划设计院有限公司,广州,510630 |
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| 基金项目： | 广州市科技计划资助项目(2008Z1-D151);国家自然科学基金和广东省联合基金资助项目(U0635003);广东省自然科学基金资助项目（9151027501000092） |
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| 摘 要： | 为了提高无线资源的利用率，基于802.16d协议的MAC层资源调度模型，提出了一种最优竞争接入调度策略，推导了最优竞争窗口的计算式，分析并实现了最优竞争接入调度策略。MATLAB数值分析和OPNET仿真结果表明：无限增大竞争窗口大小并不能改善接入性能，采用本最优竞争接入调度策略，可以得到最大平均接入用户数，实现资源优化。
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| 关 键 词： | IEEE 802.16d 资源调度 竞争接入 竞争窗口 |
Optimal contention-based access strategy for wireless communication network based on IEEE 802.16d |
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| YAO Zhi-ping,ZHANG Lin,LIU Yu-heng. Optimal contention-based access strategy for wireless communication network based on IEEE 802.16d[J]. Application Research of Computers, 2010, 27(6): 2229-2231. DOI: 10.3969/j.issn.1001-3695.2010.06.066 |
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| Authors: | YAO Zhi-ping ZHANG Lin LIU Yu-heng |
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| Affiliation: | (1.Dept. of Electronics & Communication Engineering, Sun Yat-sen University, Guangzhou 510275, China; 2.Guangdong Planning & Designing Institute of Telecommunications Co. LTD, Guangzhou 510630, China) |
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| Abstract: | In order to improve the efficiency of wireless resources, this paper presented a new optimal contention based media access strategy for IEEE 802.16d based wireless network. It derived the optimal contention window according to the number of users, and formulated the optimal contention based media access strategy. The numerical analysis in MATLAB and simulations in OPNET show that the maximal mean number of access users are obtained and the resource can be optimized, while the performance will not be improved by increasing the window size continually. |
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| Keywords: | IEEE 802.16d resource scheduling contention-based access contention window size |
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