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The Development of New dynamic WRR Algorithm for Wireless Sensor Networks  

Cho, Hae-Seong (건양대학교 전자정보공학과)
Cho, Ju-Phil (군산대학교 전파공학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.5, 2010 , pp. 293-298 More about this Journal
Abstract
The key of USN(Ubiquitous Sensor Network) technology is low power wireless communication technology and proper resource allocation technology for efficient routing. The distinguished resource allocation method is needed for efficient routing in sensor network. To solve this problems, we propose an algorithm that can be adopted in USN with making up for weak points of PQ and WRR in this paper. The proposed algorithm produces the control discipline by the fuzzy theory to dynamically assign the weight of WRR scheduler with checking the Queue status of each class in sensor network. From simulation results, the proposed algorithm improves the packet loss rate of the EF class traffic to 6.5% by comparison with WRR scheduling method and that of the AF4 class traffic to 45% by comparison with PQ scheduling method.
Keywords
Ubiquitous Sensor Network; Resource Allocation; WRR; Fuzzy theory;
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