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Issue:
Performance analysis of carrier sensing based dual channel access protocol
Author(s):
ZHAO Zhi-feng
,
ZHENG Shao-ren
,
QIU Pei-liang
Pages:
1301
-
1305
Year:
2005
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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