Hot-Spot Congestion Relief in Public-AreaWireless Networks

Date Added: Jan 2010
Format: PDF

Wireless LAN administrators are often called upon to deal with the problem of sporadic user congestion at certain popular spaces ("Hot-spots") within the network. To address this problem, authors describe and evaluate two new approaches, explicit channel switching and networkdirected roaming for providing hot-spot congestion relief while maintaining pre-negotiated user bandwidth agreements with the network. The goals of these algorithms are: to accommodate more users by dynamically providing capacity where it is needed, when it is needed; to improve overall network utilization by making more efficient use of deployed resources; and to guarantee at least a minimum amount of bandwidth to users.