Performance analysis of WLAN medium access control protocols in simulcast radio-over-fiber-based distributed antenna systems
Performance analysis of WLAN medium access control protocols in simulcast radio-over-fiber-based distributed antenna systems
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DOI：
10.1109/cc.2014.6880459
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发表时间：
2014-08
影响因子：
4.1
通讯作者：
Jianqiang Li;Yuting Fan;Hao Chen;Xun Lu;Kun Xu
中科院分区：
文献类型：
--
作者：
Jianqiang Li;Yuting Fan;Hao Chen;Xun Lu;Kun Xu
在多个远程天线单元(RAU)通过不同长度的光纤链路连接到一个接入点(AP)的联播分布式天线系统(ROF-DASS)中，研究和比较了三种无线局域网(WLAN)媒体访问控制(MAC)协议的性能。正在研究的三种WLAN MAC协议是基本接入模式下的分布式协调功能(DCF)、请求/允许发送(RTS/CTS)交换模式下的DCF和点协调功能(PCF)。在分析中，同时考虑了RAU间隐藏节点问题和光纤长度差效应，结果表明自适应PCF机制的吞吐量性能优于其他两种DCF模式，特别是在插入光纤长度较短的情况下。
The performance of three wireless local-area network (WLAN) media access control (MAC) protocols is investigated and compared in the context of simulcast radio-over-fiber-based distributed antenna systems (RoF-DASs) where multiple remote antenna units (RAUs) are connected to one access point (AP) with different-length fiber links. The three WLAN MAC protocols under investigation are distributed coordination function (DCF) in basic access mode, DCF in request/clear to send (RTS/CTS) exchange mode, and point coordination function (PCF). In the analysis, the inter-RAU hidden nodes problems and fiber-length difference effect are both taken into account.Results show that adaptive PCF mechanism has better throughput performances than the other two DCF modes, especially when the inserted fiber length is short.