Passive online wireless LAN health monitoring from a single measurement point

Authors:
Xian Chen;Bing Wang;Kyoungwon Suh;Wei Wei
Affiliations:
University of Connecticut, Storrs, CT;University of Connecticut, Storrs, CT;llinois State University, Normal, IL;University of Massachusetts, Amherst, MA
Venue:
ACM SIGMOBILE Mobile Computing and Communications Review
Year:
2010

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Abstract

Wireless LANs that are deployed in corporations and university campuses can contain a large number of access points and wireless hosts. In this paper, we develop a scalable approach that relies on measurements collected by a single monitor for WLAN health monitoring. We propose two metrics, local RTT and local loss rate, that indicate whether a wireless host experiences performance degradations inside a WLAN, and both can be obtained from measurements at the single monitor. Preliminary evaluation through data collected by a monitor at a university gateway router demonstrates the effectiveness of these two metrics.