A Study of Channel Estimation in Multi-Band OFDM UWB Systems

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dc.contributor.author Zhu, Yaolin. en_AU
dc.contributor.author Li, Changyi. en_AU
dc.contributor.author Zheng, Guoxin. en_AU
dc.date.accessioned 2007-03-12T22:05:29Z
dc.date.accessioned 2012-12-15T02:29:47Z
dc.date.available 2007-03-12T22:05:29Z
dc.date.available 2012-12-15T02:29:47Z
dc.date.issued 2007-03-12T22:05:29Z
dc.identifier.uri http://hdl.handle.net/2100/69
dc.identifier.uri http://hdl.handle.net/10453/19672
dc.description.abstract In this paper, the channel estimation techniques for multiband (MB) OFDM ultra-wideband (UWB) wireless communications are investigated. By combining orthogonal frequency-division multiplexing (OFDM) with multi-band, the MB-OFDM systems can capture multipath energy more efficiently than single-band direct sequence UWB (DS-UWB). However, most researches for UWB channel estimation are focused on the latter. Through the analysis of architecture, signal and channel model of MB-OFDM UWB wireless systems, we studied the channel estimation techniques based on preamble training sequences and pilot sub-carriers respectively. Further more, the linear estimations of least square (LS) and minimum mean square error (MMSE) are analysed and compared under different UWB channel conditions. The characteristic of estimation error changing with the SNR is also discussed. The estimation error includes the impact of interpolation error and channel noise. en_AU
dc.format.extent 240391 bytes
dc.format.mimetype application/pdf
dc.language.iso en_AU
dc.title A Study of Channel Estimation in Multi-Band OFDM UWB Systems en_AU


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