Multipath profile discrimination in TOA-based WLAN ranging with link layer frames
WiNTECH '06 Proceedings of the 1st international workshop on Wireless network testbeds, experimental evaluation & characterization
EURASIP Journal on Advances in Signal Processing
Survey of Wireless Indoor Positioning Techniques and Systems
IEEE Transactions on Systems, Man, and Cybernetics, Part C: Applications and Reviews
Wideband radio propagation modeling for indoor geolocation applications
IEEE Communications Magazine
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For Time of Arrival TOA based indoor position system, the localisation accuracy is significantly affected by the ranging error caused by the severe multipath condition. This paper presents a receive signal strength index RSSI based indoor TOA ranging error model, which can be used to estimate the interval of ranging error. In this model, TOA is divided into four classes according to the RSSI of the received data and the error interval of each class can be obtained by analysis and measurement. We described the derivation of the model and then verified it by field testing with commercial available TOA-based localisation system in two typical office environments. Based on the model, we presented a ranging error classification REC based indoor TOA localisation algorithm. Result of simulation and field testing shows that the REC algorithm has significantly improved localisation accuracy in the typical indoor environments, comparing with the traditional localisation algorithms.