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Interference-Aware Channel Assignment in Multi-Radio Wireless Mesh Networks

Summary: Interference-Aware Channel Assignment in
Multi-Radio Wireless Mesh Networks
Krishna N. Ramachandran, Elizabeth M. Belding, Kevin C. Almeroth, Milind M. Buddhikot

University of California at Santa Barbara

Lucent Bell Labs, Holmdel¡
krishna, ebelding, almeroth¢ @cs.ucsb.edu mbuddhikot@lucent.com
Abstract-- The capacity problem in wireless mesh networks
can be alleviated by equipping the mesh routers with multiple ra-
dios tuned to non-overlapping channels. However, channel assign-
ment presents a challenge because co-located wireless networks
are likely to be tuned to the same channels. The resulting increase
in interference can adversely affect performance. This paper
presents an interference-aware channel assignment algorithm and
protocol for multi-radio wireless mesh networks that address
this interference problem. The proposed solution intelligently
assigns channels to radios to minimize interference within the
mesh network and between the mesh network and co-located
wireless networks. It utilizes a novel interference estimation


Source: Almeroth, Kevin C. - Department of Computer Science, University of California at Santa Barbara


Collections: Computer Technologies and Information Sciences