Mobility

Dynamic Interference Adaptation for Wireless Mesh Networks

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Executive Summary

Most wireless meshes will have to operate within the crowded unlicensed spectrum that is also shared by numerous uncoordinated 802.11 hotspots. This creates an unpredictable and variable spectrum space that mesh networks need to co-exist within. The authors propose a novel method for adapting to such external interference by dynamically changing the assignment of channels to the backbone links, yet retaining the same "Logical" network-wide channel assignment. Called connected-component based adaption, this method ensures two important properties, allows distributed changes to the channels used by backbone links depending on local interference, and allows a centralized algorithm to dictate the high-level channel and route assignments used by the network as a whole.

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