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An Interference-Aware Routing Metric for Multi-Radio Multi-Channel Wireless Mesh Networks

Amira Bezzina Mouna Ayari Rami Langar 1 Farouk Kamoun 
1 Phare
LIP6 - Laboratoire d'Informatique de Paris 6
Abstract : Achieving efficient QoS routing is one of the major concerns in multi-radio multi-channel wireless mesh networks (WMNs). Due to interference among links, bandwidth in these networks is neither a concave nor an additive metric. Thus, choosing the highest-throughput path among all feasible ones is a very challenging task. We propose in this paper a new routing metric which strikes a balance between the quality of wireless links and the resulting inter-flow and intra-flow interference introduced using such links on specific channels. Our metric does not necessarily choose the best path in terms of throughput. It selects a high-throughput path with low inter-flow and intra-flow interference by making a judicious use of different channels. Simulation results show that our routing metric significantly outperforms previously proposed metrics especially in large-scale WMNs. An improvement up to 20% of the total network throughput is particularly observed when multiple concurrent flows are considered in the network.
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Submitted on : Thursday, March 3, 2016 - 3:18:44 PM
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Amira Bezzina, Mouna Ayari, Rami Langar, Farouk Kamoun. An Interference-Aware Routing Metric for Multi-Radio Multi-Channel Wireless Mesh Networks. 8th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob 2012, Oct 2012, Barcelona, Spain. pp.284-291, ⟨10.1109/WiMOB.2012.6379089⟩. ⟨hal-01282297⟩



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