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Advances in wireless communication have enabled mobility of
personal computing devices equipped with sensing and computing
capabilities. This has motivated the development of location-based
services (LBS) that are implemented on top of existing
communication infrastructures to cater for changing user contexts.
To enable and support the delivery of LBS, accurate, reliable and
real time user location information is needed. This book introduces
localization system for tracking the position of mobile node, using
received signal strength (RSS) in Wireless Local Area Networks
(WLAN).The main challenge in WLAN positioning is the unpredictable
nature of the RSS-position relationship. Existing system relies on
a set of training samples, collected at a set of test points with
known positions in the environment to characterize this
relationship.
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