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Reduced-order Multiuser Detection in Multi-rate DS-UWB Communications

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2 Author(s)
Yafei Tian ; School of Electronics and Information Engineering, Beihang University, 37 Xueyuan Road, Haidian District, Beijing, P. R. China 100083. Email: ytian@buaa.edu.cn ; Chenyang Yang

In ultra-wideband (UWB) systems, the ultra-wide bandwidth and abundant multipath components can provide great spreading gain and diversity gain, but will also induce complicated interference suppression algorithm because of the requirements of very high sampling rate and large number of filter taps. A reduced-order multi-user detector (R-MUD) is proposed in this paper which can significantly reduce the sampling rate thus the computational burden by down-sampling the received multipath signal at appropriate locations, where the energy of the desired user can be effectively captured and the interferences from other users can be dramatically suppressed. The superior performance of the R-MUD is justified by computer simulations.

Published in:

Communications, 2006. ICC '06. IEEE International Conference on  (Volume:10 )

Date of Conference:

June 2006

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