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A Congestion Control Scheme Using Duty-Cycle Adjustment in Wireless Sensor Networks  

Lee, Dong-Ho (광운대학교 전자통신공학과 컴퓨터통신 연구실)
Chung, Kwang-Sue (광운대학교 전자통신공학과 컴퓨터통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.1B, 2010 , pp. 154-161 More about this Journal
Abstract
In wireless sensor networks, due to the many-to-one convergence of upstream traffic, congestion more probably appears. The existing congestion control protocols avoid congestion by controlling incoming traffic, but the duty-cycle operation of MAC(Medium Access Control) layer has not considered. In this paper, we propose DCA(Duty-cycle Based Congestion Avoidance), an energy efficient congestion control scheme using duty-cycle adjustment for wireless sensor networks. The DCA scheme uses both a resource control approach by increasing the packet reception rate of the receiving node and a traffic control approach by decreasing the packet transmission rate of the sending node for the congestion avoidance. Our results show that the DCA operates energy efficiently and achieves reliability by its congestion control scheme in duty-cycled wireless sensor networks.
Keywords
Wireless Sensor Networks; Congestion Control; Resource Control; Duty-cycle Adjustment;
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