Single-radio mesh routers operating on a single channel suffer from low throughput due to collisions. Equipping mesh routers with multiple radios operating on non-overlapping channels can significantly improve the throughput. However, the assignment of channels to radios in a multi-radio mesh network is a challenging task. In this paper, we propose a channel assignment algorithm, TICA (Topology-controlled Interference-aware Channel-assignment Algorithm), which significantly improves network throughput by minimizing interference within the mesh network using a novel approach of controlling the network topology based on power control before intelligently assigning the channels to the multi-radio mesh routers, as well as guaranteeing network connectivity.

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Keywords Channel assignment algorithm, Multi-radio multi-channel, Power control, Topology control algorithm
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Conference 53rd IEEE Global Communications Conference, GLOBECOM 2010
Chaudhry, A.U. (Aizaz U.), Hafez, R, Aboul-Magd, O. (Osama), & Mahmoud, S.A. (Samy A.). (2010). Throughput improvement in multi-radio multi-channel 802.11a-based wireless mesh networks. Presented at the 53rd IEEE Global Communications Conference, GLOBECOM 2010. doi:10.1109/GLOCOM.2010.5684193