Subband adaptive chip equalization for interference suppression in DS-UWB
نویسندگان
چکیده
منابع مشابه
Adaptive interference suppression algorithms for DS-UWB systems
In multiuser ultra-wideband (UWB) systems, a large number of multipath components (MPCs) are introduced by the channel. One of the main challenges for the receiver is to effectively suppress the interference with affordable complexity. In this thesis, we focus on the linear adaptive interference suppression algorithms for the direct-sequence ultrawideband (DS-UWB) systems in both time-domain an...
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To cope with the Multi-User Interference (MUI) in the downlink of a Direct-Sequence Code Division Multiple Access (DS-CDMA) system like UMTS, chip equalization suppresses the Inter-Chip Interference (ICI) and hence restores the orthogonality of the user signals. However, effective ICI suppression calls for multi-channel reception at the mobile through receive diversity. Antenna diversity usuall...
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In this work, we propose a novel low-complexity reduced-rank scheme and consider its application to linear interference suppression in direct-sequence ultra-wideband (DS-UWB) systems. Firstly, we investigate a generic reducedrank scheme that jointly optimizes a projection vector and a reduced-rank filter by using the minimum mean-squared error (MMSE) criterion. Then a low-complexity scheme, den...
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ژورنال
عنوان ژورنال: IEICE Electronics Express
سال: 2007
ISSN: 1349-2543
DOI: 10.1587/elex.4.153