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Analysis of Hearability in Geolocation Using Mobile WiMax Network  

Song, Seung-Hun (Department of Information and Communication Engineering, Chungnam National University)
Park, Ji-Won (Department of Information and Communication Engineering, Chungnam National University)
Sung, Tae-Kyung (Division of Electrical and Computer Engineering, Chungnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.47, no.1, 2010 , pp. 35-42 More about this Journal
Abstract
Geo-location using a cellular network is a core technology for LBS together with GPS. With preamble symbols broadcasted in each frame, geo-location using WiBro network can be easily implemented. Because the WiBro network has a cellular structure, it is difficult for a mobile station to detect signals from multiple base stations. In order to get user position using trilateration, long integration techniques for sensitivity enhancement should be employed. This paper presents hybrid integration scheme for WiBro network. By analyzing coherent and non-coherent integration loss according to frequency residual and SNR respectively, optimal combination of the hybrid integration is proposed. Simulation results show that the hybrid integration method is profitable in WiBro network when the frequency residual is estimated and compensated accurately.
Keywords
WiBro; Geo-location; Sensitivity; Hybrid integration;
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