Title :
Channel tracking for fast fading long-code WCDMA
Author :
Sung, Youngchul ; Tong, Lang
Author_Institution :
Sch. of Electr. & Comput. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
A new technique for tracking of fast fading channels in long code CDMA is proposed. Using a linear interpolation model, the proposed method tracks the time-varying channel without pilot symbols or with sparsely inserted pilots. The proposed method can be implemented efficiently using a state space inversion technique. A new identifiability condition is established and the performance of the method is assessed through the mean square error and bit error rate.
Keywords :
channel estimation; code division multiple access; error statistics; fading channels; interpolation; mean square error methods; military communication; mobile radio; state-space methods; time-varying channels; bit error rate; channel tracking; fast fading channels; identifiability condition; linear interpolation model; long-code WCDMA; mean square error; military communication; performance; sparsely inserted pilots; state space inversion; time-varying channel; Bit error rate; Channel estimation; Data models; Delay effects; Fading; Interpolation; Mean square error methods; Multiaccess communication; Propagation delay; Wiener filter;
Conference_Titel :
MILCOM 2002. Proceedings
Print_ISBN :
0-7803-7625-0
DOI :
10.1109/MILCOM.2002.1179610
