Low-complexity multiuser detector for coherent and incoherent CDMA mobile radio communications

E. Del Re, R. Fantacci, S. Morosi, M. Raugei, G. Vivaldi
Seamless Interconnection for Universal Services. Global Telecommunications Conference. GLOBECOM'99. (Cat. No.99CH37042)  
This paper deals with a multiuser detector based on a decorrelating approach for asynchronous up-link DS/CDMA communications in which QPSK modulation schemes are used in transmission and coherent and incoherent receivers in reception. It is shown here that the receivers proposed are near-far resistant and exhibits lower complexity than optimum detector. The incoherent realization allows a lighter complexity overhead for the synchronization circuitry. Receivers performance is expressed in terms
more » ... f bit error rate (BER) which has been derived by simulations under the assumption of a slowly frequency-selective Rayleigh fading channel.
doi:10.1109/glocom.1999.830231 fatcat:3s5ajizl2racpnu33jnioh4qsm