Title: An interference and load aware routing metric for Wireless Mesh Networks

Authors: Lan Tien Nguyen, Razvan Beuran, Yoichi Shinoda

Addresses: Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan. ' National Institute of Information and Communications Technology, Hokuriku Research Center, 2-12 Asahidai, Nomi, Ishikawa 923-1211, Japan. ' Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi, Ishikawa 923-1292, Japan

Abstract: This paper proposes a load and interference-aware routing metric for wireless mesh networks, named Channel Utilisation and Contention Window Based (C2WB) metric. Our metric assigns weights to individual links which are proportional to the links service times estimated from both channel utilisation and the average contention window of the CSMA/CA mechanism. The path metric, combined from individual link weights, accounts for both load and interference of the links on the path. Thus the C2WB metric helps the routing protocol to balance the traffic and to improve the network capacity by avoiding routing the traffic through congested areas.

Keywords: ad hoc routing protocol; wireless mesh networks; cross-layer; load-aware; interference-aware; wireless networks; network capacity.

DOI: 10.1504/IJAHUC.2011.037851

International Journal of Ad Hoc and Ubiquitous Computing, 2011 Vol.7 No.1, pp.25 - 37

Published online: 31 Dec 2010 *

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