This paper deals with a multiuser detector based on a new decorrelating approach for asynchronous up‐link DS/CDMA communications in which the QPSK modulation scheme is used in transmission. It is shown here that the receiver proposed is near–far resistant and exhibits a low complexity which allows real‐time operation. Performance is expressed in terms of bit error rate (BER) which has been derived by simulations under the assumption of a slowly frequency‐selective Rayleigh fading channel.
A Low-Complexity Multiuser Detector for Up-Link CDMA QPSK Mobile Radio Communications / E. Del Re; R. Fantacci; S. Morosi; G. Vivaldi. - In: WIRELESS NETWORKS. - ISSN 1022-0038. - STAMPA. - 5:(1999), pp. 461-465.
A Low-Complexity Multiuser Detector for Up-Link CDMA QPSK Mobile Radio Communications
DEL RE, ENRICO;FANTACCI, ROMANO;MOROSI, SIMONE;
1999
Abstract
This paper deals with a multiuser detector based on a new decorrelating approach for asynchronous up‐link DS/CDMA communications in which the QPSK modulation scheme is used in transmission. It is shown here that the receiver proposed is near–far resistant and exhibits a low complexity which allows real‐time operation. Performance is expressed in terms of bit error rate (BER) which has been derived by simulations under the assumption of a slowly frequency‐selective Rayleigh fading channel.
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