@inproceedings{moscibroda2008load-aware, author = {Moscibroda, Thomas and Chandra, Ranveer and Wu, Yunnan and Sengupta, Sudipta and Bahl, Victor and Yuan, Yuan}, title = {Load-Aware Spectrum Distribution in Wireless LANs}, booktitle = {ICNP 2008: 16th IEEE International Conference on Network Protocols, Orlando, Florida}, year = {2008}, month = {October}, abstract = {Traditionally, the channelization structure in IEEE 802.11-based Wireless LANs has been fixed: Each access point (AP) is assigned one channel and all channels are equally wide. In contrast, it has recently been shown that even on commodity hardware, the channel-width can be adapted dynamically purely in software. Leveraging this capability, we study the use of dynamic-width channels, where every AP adaptively adjusts not only its center-frequency, but also its channel-width to match its traffic load. This gives raise to a novel optimization problem that differs from previously studied channel assignment problems. We propose efficient spectrum-distribution algorithms and evaluate their effectiveness through analysis and simulations using realworld traces. Our results indicate that by allocating more spectrum to highly-loaded APs, the overall spectrum-utilization can be substantially improved and the notorious load-balancing problem in WLANs can be solved naturally.}, publisher = {IEEE Communications Society}, url = {http://approjects.co.za/?big=en-us/research/publication/load-aware-spectrum-distribution-in-wireless-lans/}, edition = {ICNP 2008: 16th IEEE International Conference on Network Protocols, Orlando, Florida}, }