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DS-UWB Downlink Subband Adaptive Chip-Equalization Using Reduced-Rank Multistage Wiener Filtering Technique | IEEE Journals & Magazine | IEEE Xplore

DS-UWB Downlink Subband Adaptive Chip-Equalization Using Reduced-Rank Multistage Wiener Filtering Technique


Abstract:

A computationally efficient subband adaptive chip-equalizer is investigated for downlink direct-sequence (DS) ultra-wideband (UWB) systems to cope with both the intersymb...Show More

Abstract:

A computationally efficient subband adaptive chip-equalizer is investigated for downlink direct-sequence (DS) ultra-wideband (UWB) systems to cope with both the intersymbol interference (ISI) and the multiple-access interference (MAI) in multipath fading channels. This adaptive chip-equalization is developed based on the utilization of the reduced-rank (RR) multistage Wiener filter (MWF) in subbands. As a consequence, the proposed subband chip-equalizer achieves a substantial saving in complexity without compromising system performance. Simulations are conducted to provide a comparative evaluation of the proposed subband chip-equalizer with other existing fullband chip equalizers.
Published in: IEEE Transactions on Signal Processing ( Volume: 59, Issue: 4, April 2011)
Page(s): 1883 - 1889
Date of Publication: 20 December 2010

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