Proceedings of the 11th annual international conference on Mobile computing and networking
Distributed channel management in uncoordinated wireless environments
Proceedings of the 12th annual international conference on Mobile computing and networking
MDG: measurement-driven guidelines for 802.11 WLAN design
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Interference map for 802.11 networks
Proceedings of the 7th ACM SIGCOMM conference on Internet measurement
A Cross-Layer Framework for Association Control in Wireless Mesh Networks
IEEE Transactions on Mobile Computing
Novel metrics and experimentation insights for dynamic frequency selection in wireless LANs
WiNTECH '11 Proceedings of the 6th ACM international workshop on Wireless network testbeds, experimental evaluation and characterization
Journal of Network and Computer Applications
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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-to-end 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 simulations. We observe that our protocol improves the total network throughput, as compared to three other channel allocation strategies.