Title :
Blind channel identification for multirate CDMA systems
Author :
Yan, Hongbo ; Roy, Sumit
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
In this paper, we propose a unified approach to blindly identify channels for multirate CDMA systems-both multiple code (MC) and variable processing gain (VPG) systems are considered. A time-domain subspace approach to blind channel estimation introduced in Torlak and Xu (1997) is generalized to the multi-rate case. Performance evaluation is conducted based on the normalized root mean square error (NRMSE) with an appropriate single-rate as a baseline for comparison
Keywords :
code division multiple access; identification; mean square error methods; radio receivers; telecommunication channels; time-domain analysis; MC systems; VPG systems; blind channel estimation; blind channel identification; multiple code system; multirate CDMA systems; normalized root mean square error; time-domain subspace approach; unified approach; variable processing gain system; Additive white noise; Bandwidth; Baseband; Blind equalizers; Gain; Multiaccess communication; Multimedia systems; Root mean square; Time domain analysis; Wireless communication;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.860953
