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The most important criterion for achieving the maximum performance in a Wireless Mesh Network (WMN) is to limit the interference within the network. For this purpose, especially in a multi-radio network, the best option is to use non-overlapping channels among different radios within the same interference range. Previous works that have considered non-overlapping channels in IEEE 802.11a as the basis for performance optimization, have considered the link quality across all channels to be uniform. In this paper, the authors present a measurement-based study of link quality across all channels in an IEEE 802.11a-based indoor WMN test bed.
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