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A Rate Control Scheme Considering Congestion Patterns in Wireless Sensor Networks  

Kang, Kyung-Hyun (광운대학교 전자통신공학과)
Chung, Kwang-Sue (광운대학교 전자통신공학과)
Publication Information
Journal of KIISE:Computing Practices and Letters / v.16, no.12, 2010 , pp. 1229-1233 More about this Journal
Abstract
In event-driven wireless sensor networks, network congestion occurs when event data, which have higher transmission rates than periodic sensing data, arc forwarded to bottleneck links. As the congestion continues, congestion collapse is triggered, so most of packets from source nodes are failed to transmit to a sink node. Rate control schemes can be a solution for preventing the congestion collapse problem. In this paper, a rate control scheme that each node controls child node's data rate based on congestion patterns is proposed. Experiments show that the proposed scheme effectively controls network congestion and successfully transmits more event data packets to a sink node than existing rate control schemes.
Keywords
Wireless Sensor Network; Rate Control Scheme; Congestion Pattern; Congestion Control;
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