This paper addresses the problem of interference aware routing in multi-radio infrastructure mesh networks wherein each mesh node is equipped with multiple radio interfaces and a subset of nodes serve as Internet gateways. The paper presents a new interference aware routing metric - iAWARE that aids in finding paths that are better in terms of reduced inter- flow and intra-flow interference. The authors incorporate this metric and new support for multi-radio networks in the well known AODV routing protocol to design an enhanced AODV-MR routing protocol. The performance of the new routing metric is studied by implementing it in the wireless testbed consisting of 12 mesh nodes.
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