Title :
Performance of multiuser detection with pilot-symbol-assisted channel estimation
Author :
Ma, Yao ; Schober, R. ; Lim, T.J. ; Pasupathy, S.
Author_Institution :
Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
In this paper, we study the performance of a general linear coherent multiuser receiver with pilot-symbol-assisted channel estimation (PSA-CE) for doubly-selective Rician-fading CDMA channels. Employing the multivariate Gaussian approximation (MGA) and a decision variable-based moment generating function (MGF) approach, both exact and low-complexity approximate bit error probability (BEP) formulas are presented. Some new findings are illustrated by numerical results.
Keywords :
Gaussian distribution; Rician channels; channel estimation; code division multiple access; diversity reception; error statistics; multiuser detection; BEP; MGA; MGF; PSA-CE; asynchronous CDMA channels; bit error probability; decision variable-based moment generating function; diversity combining; doubly-selective Rician-fading channels; general linear coherent multiuser receiver; multiuser detection; multivariate Gaussian approximation; pilot-symbol-assisted channel estimation; Channel estimation; Diversity reception; Error probability; Fading; Gaussian approximation; Multiaccess communication; Multiple access interference; Multiuser detection; Nonlinear filters; Random variables;
Conference_Titel :
Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th
Print_ISBN :
0-7803-7954-3
DOI :
10.1109/VETECF.2003.1285204
