Title :
Iterative multiuser detection for space-time coded synchronous CDMA
Author :
Jayaweera, Sudharman K. ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
fDate :
6/23/1905 12:00:00 AM
Abstract :
Multiuser detectors for trellis space-time coded synchronous CDMA, operating in the presence of independent Rayleigh fading are considered. The joint optimal maximum likelihood (ML) multiuser detector, which can be implemented as a Viterbi algorithm, is derived for such space-time coded systems. A suboptimal, low complexity iterative space-time multiuser detector based on interference cancellation and the turbo principle is also derived. Simulations show that this latter method achieves performance competitive with the single user bound for space-time coded systems
Keywords :
Rayleigh channels; Viterbi detection; code division multiple access; interference suppression; iterative methods; maximum likelihood detection; multiuser channels; radio receivers; radiofrequency interference; trellis codes; Viterbi algorithm; independent Rayleigh fading; interference cancellation; iterative multiuser detection; iterative space-time multiuser receiver; joint optimal maximum likelihood multiuser detector; low complexity multiuser detector; simulations; single user bound; suboptimal multiuser detector; trellis space-time coded synchronous CDMA; Code division multiplexing; Detectors; Fading; Interference cancellation; Multiuser detection; Rayleigh channels; Receiving antennas; Space time codes; Transmitters; Transmitting antennas;
Conference_Titel :
Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
Conference_Location :
Atlantic City, NJ
Print_ISBN :
0-7803-7005-8
DOI :
10.1109/VTC.2001.957258