Routing-Aware Channel Selection in Multi-Radio Mesh Networks

— Efficient channel selection is essential in 802.11 mesh deployments, for minimizing contention and interference among co-channel devices and thereby supporting a plurality of QoS-sensitive applications. In this paper, we propose ARACHNE, a routing-aware channel selection protocol for wireless mesh networks. ARACHNE is distributed in nature, and motivated by our measurements on a wireless testbed. The main novelty of our protocol comes from adopting a metric that captures the end-toend link loads across different routes in the network. ARACHNE prioritizes the assignment of low-interference channels to links that (a) need to serve high-load aggregate traffic and/or (b) already suffer significant levels of contention and interference. Our protocol takes into account the number of potential interfaces (radios) per device, and allocates these interfaces in a manner that efficiently utilizes the available channel capacity. We evaluate ARACHNE through extensive, trace-driven simulatio...

• Type: Conference
• Year: 2009
• Where: ICC
• Authors: George Athanasiou, Ioannis Broustis, Thanasis Korakis, Leandros Tassiulas
• Keywords: ARACHNE, Channel Selection, Channel Selection Protocol, Communications, ICC 2009