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Performance analysis of carrier sensing based dual channel access protocol
Author(s): 
Pages: 1301-1305
Year: Issue:  9
Journal: JOURNAL OF ZHEJIANG UNIVERSITY(ENGINEERING SCIENCE)

Keyword:  Ad Hoc网络信道接入协议载波监听双信道;
Abstract: 为了解决Ad Hoc网络由隐终端和暴露终端引起的数据报文冲突问题,提出了基于载波监听的双信道多重接入(DCMA)协议.载波监听DCMA协议通过使用载波监听和忙指示(BI)控制报文来解决数据报文冲突问题.将忙期/闲期理论应用于双信道接入协议性能分析,对全互联网络中载波监听DCMA协议的信道利用率进行了建模分析,并通过软件仿真研究了复杂网络拓扑下载波监听DCMA协议的吞吐量.分析结果表明,载波监听DCMA的信道利用率要高于报文监听DCMA协议.在高负载情况下,载波监听DCMA的吞吐量比报文监听DCMA协议和单信道接入协议的吞吐量提高了近50%.
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