Wireless Local Area Network (WLAN) has been an emerging technology in residential and enterprise market by providin- hi-h data rates at low cost. Future trends in WLAN industry are targeted towards new applications wi...
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ISBN:
(纸本)0780389662
Wireless Local Area Network (WLAN) has been an emerging technology in residential and enterprise market by providin- hi-h data rates at low cost. Future trends in WLAN industry are targeted towards new applications with higher data rates, L-h wider coverage, and increased QoS requirements. User tracking system based on WLAN infrastructure is a new service that helps network operators in monitoring different aspects of their networks in addition to providing location aware services to their customers. In this paper, we provide an overview of the traditional location sensing algorithms and compare their performance with the new distancevariance (DV) algorithm. These algorithms the existing IEEE 802.11 infrastructure to locate a terminal. The newly introduced DV algorithm uses indoor radio propagation models to reduce the complexity of calibration process, used in conventional algorithms. The performances of die existing and new algorithm are compared using Monte Carlo simulations based on IEEE 802.11 channel models.
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