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- W2133463485 abstract "This paper studies the design and implementation of a linear minimum mean-square error (LMMSE) receiver in asynchronous direct-sequence code-division multiple-access (DS-CDMA) systems that employ long-code pseudonoise (PN) sequences and operate in multipath environments. The receiver is shown to be capable of multiple-access interference (MAI) suppression and multipath diversity combining without the knowledge of other users' signature sequences. It maximizes output signal-to-noise ratio (SNR) with the aid of a new chip filter which exploits the cyclostationarity of the received signal and combines all paths of the desired user that fall within its supported time span. The performance of the LMMSE receiver is compared with that of the coherent selective RAKE receiver. The achieved gain is on the order of 0.6-1.8 dB in dense multipath environments of current narrow-band settings and nonuniform power distribution scenarios of next-generation CDMA systems. An example of adaptive implementation of the LMMSE receiver is presented and accompanied by complexity analysis, training curves, and quantitative performance comparisons illustrating the convergence rate and steady-state performance of the adaptive algorithms." @default.
- W2133463485 created "2016-06-24" @default.
- W2133463485 creator A5047049617 @default.
- W2133463485 creator A5077995319 @default.
- W2133463485 date "2002-09-01" @default.
- W2133463485 modified "2023-09-25" @default.
- W2133463485 title "A linear MMSE receiver for multipath asynchronous random-CDMA with chip pulse shaping" @default.
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- W2133463485 doi "https://doi.org/10.1109/tvt.2002.801746" @default.
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