A traffic aware, energy-efficient MAC protocol for Wireless Sensor Networks

被引：6
|
作者：
Gong, Haigang [1 ]
Cao, Jiannong [2 ]
Liu, Ming [3 ]
Chen, Lijun [3 ]
Xie, Li [3 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Engn & Comp Sci, Chengdu 610054, Sichuan, Peoples R China
[2] Hong Kong Polytech Univ, Dept Comp, Hong Kong, Hong Kong, Peoples R China
[3] Nanjing Univ, Dept Comp Sci & Technol, State Key Lab Novel Software Technol, Nanjing 210093, Jiangsu, Peoples R China
来源：
INTERNATIONAL JOURNAL OF AD HOC AND UBIQUITOUS COMPUTING | 2009年 / 4卷 / 3-4期
关键词：
traffic adaptive; WSNs; wireless sensor networks; MAC protocol; energy efficient; contention windows;
D O I：
10.1504/IJAHUC.2009.024517
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose TA-MAC, a traffic load adaptive, energy-efficient Medium Access Control (MAC) protocol for Wireless Sensor Networks (WSNs). TA-MAC modifies the contention window mechanism of S-MAC, a mostly well-known MAC scheme for sensor networks. Each sensor node chooses an optimal size of initial contention window according to the number of its neighbours. Then, it adjusts the initial contention window according to the current traffic load to reduce the collision probability while employing a fast back-off scheme to reduce the time for idle listening during back-off procedure, which both reduce the energy consumption. Simulation results show that TA-MAC outperforms S-MAC under high load.
引用
收藏
页码：148 / 156
页数：9
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