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http://dx.doi.org/10.7840/KICS.2012.37B.3.204

An Enhanced-WCETT Routing Metric based on Available Bandwidth and Traffic Load in Wireless Mesh Networks  

Lee, Ji-Soo (숭실대학교 정보통신전자공학부 통신망 설계 및 분석 연구실)
Hwang, Jun-Ho (숭실대학교 정보통신전자공학부 통신망 설계 및 분석 연구실)
Yoo, Myung-Sik (숭실대학교 정보통신전자공학부 통신망 설계 및 분석 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.37, no.3B, 2012 , pp. 204-211 More about this Journal
Abstract
Wireless Mesh Network (WMN) has drawn much attention due to wide service coverage with low system cost. However, WMN suffers from high bit error rate, which provides different link capacity among wireless mesh routers. The conventional routing metrics select the path based on link quality. The link with the best quality is preferred as the data transmission path, and they becomes the bottleneck links, which leads to network performance degradation. In this paper, we propose a routing metric that considers the available bandwidth and the number of nodes suffering congestion in the path. Through computer simulations, we verified that the proposed routing metric outperforms the existing routing metrics in terms of average transmission delay, packet loss, system throughput.
Keywords
Wireless Mesh Network; Routing Algorithm; Routing Metric; Available Bandwidth; Traffic load;
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