Location Determination in Wireless OFDM System

H.J. Bang, J.G. Lee, G-I. Jee, S.Y. Kim, S.S. You, S.H. Kong, H. Jung, M. Hyun and J. Kim

Abstract:	This paper presents a methodology determining a location of a mobile station (MS) in a wireless Orthogonal Frequency Division Multiplexing (OFDM) communication network that is designed based on IEEE 802.16e. An MS location is calculated from at least two time difference of arrivals (TDoAs) between an MS and three base stations (BSs). The TDoAs are obtainable by detecting preamble symbols in OFDM signal streams. The proposed methodology is verified by simulating a wireless OFDM communication network with a 2-tier cell configuration having 19 cells or BSs and International Telegraph Union (ITU) channel models.Simulation results show that the proposed methodology consistently find MS locations with a rate of 74~83% success in which location errors are less than 150 m, a requirement of E911. The RMS location error lies in 48.36 ~ 66.41m.
Published in:	Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005) September 13 - 16, 2005 Long Beach Convention Center Long Beach, CA
Pages:	2213 - 2217
Cite this article:	Bang, H.J., Lee, J.G., Jee, G-I., Kim, S.Y., You, S.S., Kong, S.H., Jung, H., Hyun, M., Kim, J., "Location Determination in Wireless OFDM System," Proceedings of the 18th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2005), Long Beach, CA, September 2005, pp. 2213-2217.
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