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- W2118946739 abstract "In wireless broadband communications using code division multiple access (CDMA), interference cancellation (IC) techniques have been proposed to reduce multiuser access interference (MAI); however, their performance is limited by complexity constraints that still favor the use of rake receivers. In this paper, we propose an IC architecture that makes use of a block decision feedback equalizer (DFE) to remove intersymbol interference (ISI) and whose overall complexity is much lower than equivalent (in terms of performance) existing structures. In fact, by making use of a particular block data transmission format, all filters are implemented in the frequency domain (FD), and in particular, the DFE is iteratively designed according to the reliability of the detected data in the previous iteration. Due to the strong interaction of the FD-IC and the block DFE, error propagation in the receiver is reduced by simply interleaving (INT) chips before transmission. Simulations performed for an uplink communication on a wireless multipath channel show that the combination of FD-IC, block DFE, and chip INT provides an efficient solution with good performance for CDMA systems in dispersive channels." @default.
- W2118946739 created "2016-06-24" @default.
- W2118946739 creator A5024328221 @default.
- W2118946739 creator A5076790432 @default.
- W2118946739 date "2005-09-01" @default.
- W2118946739 modified "2023-10-18" @default.
- W2118946739 title "Frequency-domain interference cancellation and nonlinear equalization for CDMA systems" @default.
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- W2118946739 doi "https://doi.org/10.1109/twc.2005.853823" @default.
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