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A Robust Coherent IR-UWB Channel Estimation Method Against Imperfect Synchronization  

Hwang, In-Jae (충남대학교 전자전파정보통신공학과 이동멀티미디어통신 연구실)
Kim, Jeong-Been (충남대학교 전자전파정보통신공학과 이동멀티미디어통신 연구실)
Oh, Wang-Rok (충남대학교 전자전파정보통신공학과 통신시스템 연구실)
Ahn, Jae-Min (충남대학교 전자전파정보통신공학과 이동멀티미디어통신 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.3A, 2009 , pp. 205-212 More about this Journal
Abstract
A novel channel estimation scheme is proposed for coherent Impulse Radio Ultra Wideband (IR-UWB) system based on IEEE 802.15.4a specification. By extracting and utilizing the information on the frequency synchronization, the proposed channel estimation algorithm improves the receiver performance even under the restricted number of preamble symbols in IEEE 802.15.4a signal format. Simulation results over the IEEE 802.15.4a channel models show the performance gain with the proposed algorithm compared to ordinary channel estimation method.
Keywords
channel estimation; Coherent IR-UWB; frequency offset; synchronization; multipath profile;
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