Title :
Iterative channel estimation and multiuser detection in multipath CDMA channels
Author :
Li, Husheng ; Poor, H. Vincent
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
Abstract :
This paper analyzes the iterative channel estimation and multiuser detection in multipath fading coded CDMA channels. The maximum likelihood criterion is used for channel estimation while the interference is cancelled with direct interference cancellation. The channel decoder output is fed back to enhance the performance of the channel estimator and interference canceller. The asymptotic system performance is analyzed, and conditions for convergence and uniqueness of fixed point are given.
Keywords :
channel coding; channel estimation; code division multiple access; fading channels; interference suppression; iterative decoding; maximum likelihood estimation; multipath channels; multiuser detection; asymptotic system performance; channel decoder; code division multiple access; direct interference cancellation; fixed point convergence; interference; iterative channel estimation; maximum likelihood criterion; multipath CDMA channels; multiuser detection; Channel estimation; Fading; Interference cancellation; Iterative decoding; Maximum likelihood decoding; Maximum likelihood detection; Maximum likelihood estimation; Multiaccess communication; Multiuser detection; System performance;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1204364
