Mobility

Cognitive Multi-Radio Mesh Networks on ISM Bands: A Cross-Layer Architecture

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Executive Summary

A Wireless Mesh Network (WMN) has been popularly researched as a wireless backbone for Internet access with off-the-shelf and inexpensive equipments. Nowadays, several applications like contents sharing, multicast video streaming and vehicular networks encourage to build mesh networks in urban areas. However, the deployment of WMNs in unlicensed bands of dense urban areas imposes many challenges. While previous research has mostly focused on optimal channel allocation under inter or intra-flow interferences within mesh nodes, the practical deployment of WMNs also requires to consider the interference caused by external entities such as residential access points that do not belong to the WMN. To address this issue, the authors propose Urban-X which is a first attempt towards a new architecture for multi-radio cognitive mesh networks.

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