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链路层重传对无线Adhoc网络TCP性能影响的研究

, PP. 92-96

Keywords: 无线Ad,hoc,网络,媒体接入控制,传输控制协议

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Abstract:

在基于IEEE802.11MAC接入的无线Adhoc网络中,突发性较弱的TCP反向应答包在与正向数据包竞争信道时处于劣势,从而引起TCP连接周期性的多余重传.静态拓扑研究表明,适中的链路层重传上界(如5次)可获得最优的TCP性能,且该最优重传上界与网络业务负载大小有关系;动态拓扑研究则显示,不同节点移动速度对链路层重传上界不敏感.

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