A low-complexity multiuser detector for asynchronous CDMA QPSK systems

A low-complexity multiuser detector for asynchronous CDMA QPSK systems

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 that the receiver proposed is near-far resistant and exhibits a low complexity which allows real-t...

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Hauptverfasser: Del Re, E., Fantacci, R., Morosi, S., Vivaldi, G.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
AWGN
Bit error rate
Decorrelation
Detectors
Fading
Frequency
Land mobile radio
Multiaccess communication
Multipath channels
Quadrature phase shift keying
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Beschreibung
Zusammenfassung: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 that the receiver proposed is near-far resistant and exhibits a low complexity which allows real-time operation. The performance is expressed in terms of the bit error rate (BER) which has been derived by simulations under the assumption of a slow frequency-selective Rayleigh fading channel.
DOI:10.1109/PIMRC.1998.733590