Location Estimation for Personalization Based on Received Signal Strength from AP Causing the GPS Signal Attenuation in Building

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Provided by: Science & Engineering Research Support soCiety (SERSC)
Topic: Mobility
Format: PDF
Location Estimation (LE) is important in Ubiquitous Computing Environments (UCEs). For positioning application, Global Positioning System (GPS) and Received Signal Strength (RSS) from Access Pointer (AP) using LE is increasingly popular choice especially after pervasive adoption of IEEE 802.11 Wireless Sensor Networks (WSNs). Fundamental requirement of such LE is to estimate location from RSS at a particular location. Multi-Path Fading Effects (MPFEs) make RSS to fluctuate in unpredictable manner, introducing uncertainty in LE. Moreover, in practical situations, RSS values RF Signal (RFS) from AP are not available at some locations all the time making the problem more difficult.
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