An optimal station association policy for multi-rate ieee 802.11 wireless lans
Proceedings of the 10th ACM Symposium on Modeling, analysis, and simulation of wireless and mobile systems
Computer Networks: The International Journal of Computer and Telecommunications Networking
Load balancing access point association schemes for IEEE 802.11 wireless networks
WASA'11 Proceedings of the 6th international conference on Wireless algorithms, systems, and applications
Throughput analysis and measurement on real terminal in multi-rate wireless LAN
Proceedings of the 6th International Conference on Ubiquitous Information Management and Communication
Load-balanced AP association in multi-hop wireless mesh networks
The Journal of Supercomputing
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With the enormous economies of scale of Wireless LAN (WLAN) hardware, the price of commodity WLAN access points has dropped to the level that is even cheaper than some WLAN adapters. In this paper we propose to put together an array of off-the-shelf access points, each operating at a different radio frequency, to build a super access point that can both scale up the overall sustained throughput and improve the robustness of WLAN connectivity in the presence of failures and denial-of-service attacks. The key enabling technology for the proposed access point array architecture is a dynamic load balancing mechanism that can adaptively adjust the association between stations and access points so as to distribute the traffic load among the arrayýs channels. We have successfully developed such a load balancing mechanism and used it to build a working access point array prototype. Measurements on this prototype show that the proposed load balancing scheme can indeed improve the overall throughput and mitigate performance impacts due to misbehaving stations. In addition, the prototype requires no modification to either the access points or the stations, making it a technology readily applicable to existing wireless LAN environments.