Title :
Performance of iterative multiuser decoding and channel estimation in WCDMA systems
Author :
Bhashyam, Srikrishna ; Hottinen, Ari
Author_Institution :
Dept. of Electr. & Comput. Eng., Rice Univ., Houston, TX, USA
Abstract :
This paper studies the performance of iterative multiuser decoding, interference cancellation, and channel estimation techniques applicable to third generation WCDMA systems. The concept uses a posteriori probabilities of code symbols to enhance detection, decoding and channel estimation in an iterative fashion. The performance is analyzed in a multipath channel with simulations. It is seen that the proposed concept combats multiuser interference effectively and performs almost as well as single user systems
Keywords :
broadband networks; code division multiple access; fading channels; interference suppression; iterative decoding; land mobile radio; multipath channels; multiuser channels; parameter estimation; radio networks; radiofrequency interference; signal detection; a posteriori probabilities; channel estimation; code symbols; interference cancellation; iterative multiuser decoding; mobile radio; multipath fading channel; multiuser interference; parallel interference cancellation; performance; signal detection; simulations; single user systems; third generation WCDMA systems; Channel estimation; Decorrelation; Delay; Fading; Filters; Interference cancellation; Iterative decoding; Multiaccess communication; Multiple access interference; Turbo codes;
Conference_Titel :
Vehicular Technology Conference Proceedings, 2000. VTC 2000-Spring Tokyo. 2000 IEEE 51st
Conference_Location :
Tokyo
Print_ISBN :
0-7803-5718-3
DOI :
10.1109/VETECS.2000.851492
