Title :
PIC multiuser DS-CDMA detection together with EM channel estimation
Author :
Mohammad-Khani, G.R. ; Cances, J.-P. ; Syed, M.J. ; Meghdadi, V.
Author_Institution :
GESTE-ENSIL, Limoges Univ., France
Abstract :
We derive in this paper a low-complexity receiver scheme for joint multiuser decoding and parameter estimation of code division multiple access (CDMA) signals. The receiver is mainly made of a serial interference canceler (SIC) and of an expectation-maximization (EM) algorithm for channel parameter estimation. Computer simulations show that the proposed receiver achieves near single-user performance even at high channel load (number of users per chip).
Keywords :
channel estimation; code division multiple access; interference suppression; multiuser detection; radio receivers; radiofrequency interference; spread spectrum communication; DS-CDMA detection; channel parameter estimation; direct sequence code division multiple access; electromagnetic channel estimation; expectation-maximization algorithm; joint multiuser decoding; low-complexity receiver scheme; parallel interference cancellers multiuser; serial interference canceler; Channel estimation; Code division multiplexing; Computer simulation; Frequency; Interference cancellation; Iterative decoding; Multiaccess communication; Parameter estimation; Phased arrays; Silicon carbide;
Conference_Titel :
Communications, 2003. APCC 2003. The 9th Asia-Pacific Conference on
Print_ISBN :
0-7803-8114-9
DOI :
10.1109/APCC.2003.1274360
