| 集中式无线局域网流间干扰分析及资源分配机制 |
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| 引用本文： | 皇甫伟,周新运,孙利民.集中式无线局域网流间干扰分析及资源分配机制[J].计算机辅助设计与图形学学报,2007,19(11):1489-1495. |
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| 作者姓名： | 皇甫伟 周新运 孙利民 |
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| 作者单位： | 1. 中国科学院软件研究所信息安全国家重点实验室,北京,100080
2. 中国科学院软件研究所信息安全国家重点实验室,北京,100080;中国科学院研究生院,北京,100049 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划)
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国家高技术研究发展计划(863计划) |
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| 摘 要： | 分析无线信道变化对集中式无线局域网下行业务性能的影响,指出流间干扰会导致所有下行业务流性能下降.提出一种基于信道状态的资源分配机制,该机制基于信道状态动态地调整业务流分组的传输次数,根据业务流的QoS需求,采用优先级调度算法调度分组.实验结果表明,该机制可以合理地分配资源,减小流间干扰带来的性能下降.
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| 关 键 词： | 流间干扰分析 分组错误率 下行业务性能 资源分配机制 集中式无线局域网 干扰分析 分配资源 分配机制 Mode Infrastructure Networks Area Local Wireless Scheme Resource Allocation Analysis Interference 结果 实验 优先级调度算法 需求 传输 分组 |
| 收稿时间： | 2007-01-25 |
| 修稿时间： | 2007-05-28 |
Traffic Interference Analysis and Resource Allocation Scheme for Wireless Local Area Networks with Infrastructure Mode |
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| Huangfu Wei,Zhou Xinyun,Sun Limin.Traffic Interference Analysis and Resource Allocation Scheme for Wireless Local Area Networks with Infrastructure Mode[J].Journal of Computer-Aided Design & Computer Graphics,2007,19(11):1489-1495. |
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| Authors: | Huangfu Wei Zhou Xinyun Sun Limin |
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| Affiliation: | 1 State Key Laboratory of Information Security, Institute of Software, Chinese Academy of Sciences, Beijing 100080; 2 Graduate University of Chinese Academy of Sciences, Beijing 100049 |
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| Abstract: | In this paper,the influence of wireless channel state transformation in wireless local area networks with infrastructure mode is studied.It is shown that the interference among different traffics will lead to severe performance degradation of all downlink traffics.A novel channel state aware resource allocation scheme is proposed,which adaptively adjusts transmission limit for different traffics based on the state of wireless channel and schedules packets using a priority algorithm according to the QoS requirements of the traffics.Experimental results show this scheme can allocate resource more efficiently and reduce the performance degradation caused by the interference of downlink traffics. |
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| Keywords: | traffic interference analysis packet error rate performance of downlink flows resource allocation scheme |
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