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- W2109252897 abstract "This paper proposes an iterative receiver derived from recent advances in narrowband turbo equalization for the multicode transmission scheme of the downlink of DS-CDMA systems with long scrambling sequences. The proposed scheme is based on a chip-rate linear equalizer exchanging soft information on the composite multi-user signal with the channel decoder in an iterative process. When all spreading codes are known from the receiver, the equalizer may evolve from a linear minimum mean square error (MMSE) equalizer to an inter-chip interference (ICI) canceller, according to the reliability of the estimation of the chip-rate multi-user signal previously performed. When only partial knowledge about the codes is available, the equalizer becomes a hybrid structure between the linear MMSE equalizer and the ICI canceller. Numerical simulations demonstrate the efficiency of the proposed scheme compared to linear equalizers and multistage interference cancellers. In particular, it is shown that this receiver can still achieve high performance in the presence of unknown codes, which makes it particularly attractive for future downlink high speed packet transmission systems." @default.
- W2109252897 created "2016-06-24" @default.
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- W2109252897 date "2004-04-23" @default.
- W2109252897 modified "2023-09-27" @default.
- W2109252897 title "Iterative channel equalization for the multicode DS-CDMA" @default.
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- W2109252897 doi "https://doi.org/10.1109/vetecs.2003.1207145" @default.
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