Mitigating the exposed node problem in IEEE 802.11 ad hoc networks

被引:30
|
作者
Shukla, D [1 ]
Chandran-Wadia, L [1 ]
Iyer, S [1 ]
机构
[1] Indian Inst Technol, K R Sch Informat Technol, Bombay 400076, Maharashtra, India
关键词
D O I
10.1109/ICCCN.2003.1284164
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We describe enhancements to the IEEE 802.11 DCF MAC Protocol which enable nodes to identify themselves as exposed nodes and to opportunistically schedule concurrent transmissions whenever possible, thereby improving utilization and mitigating the exposed node problem. The algorithm makes minimal changes to the IEEE 802.11 MAC protocol. It does not require the introduction of new frame types or changes to existing frame formats. We show, using simulations in GloMoSim, that it provides significant improvement in throughput.
引用
收藏
页码:157 / 162
页数:6
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