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IEEE802.11无线网络中DCF模式媒介服务状态分析 被引量：2

Service Status of DCF Model in IEEE 802. 11 Wireless Network
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摘要 IEEE 802.11标准的分布式协调功能(DCF)模式下,节点通过竞争获得无线媒介的访问权,导致媒介服务时间远大于数据帧传输时间.通过深入分析数据帧传输、数据帧碰撞以及媒介空闲3种媒介状态的转换情况,采用近似二项分布建立媒介状态描述模型,获得了媒介服务时间估计值.仿真结果表明,所建立的模型能够准确地衡量给定网络状态下的媒介服务时间. For the distributed coordination function （DCF） defined in the IEEE 802. 11 standard, the nodes is obtained an access rights to the wireless medium by contention method. As a result, the service time of the data frame becomes larger than the transmission time. Based on analysis of the transition between the status of frame transmitting, frame collision and idle, the medium status can be described by the binomial distribution; moreover, the service time for the given network status can be estimated. Simulations show that the estimated results are accurate.
作者 吴大鹏 王汝言 武穆清 甄岩
机构地区 重庆邮电大学通信与信息工程学院 北京邮电大学信息与通信工程学院
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2011年第4期101-104,共4页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金项目(61001105) 重庆市教委项目(KJ100521)
关键词 无线局域网 分布式协调功能 服务状态 隐藏节点 wireless local area network distributed coordination function service status hidden node
分类号 TN929.53 [电子电信—通信与信息系统]
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参考文献12

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二级参考文献35

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共引文献7

同被引文献11

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北京邮电大学学报
2011年 第4期

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