Title :
CDMA blind channel estimation: performance analysis
Author :
Weijun, Sun ; Yongzhong, Zou ; Daoben, Li
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
fDate :
31 Aug.-4 Sept. 2004
Abstract :
Blind channel estimation in CDMA are studied in this paper. MSE (mean squared error) of parameter estimation is important for evaluating the estimation algorithm and its lower bound is CRB (Cramer Rao bound). In this paper, FIM and CRB for CDMA complex channel estimation are analyzed. Furthermore FIM and CRB for CDMA blind complex channel estimation under linear constraints is studied in complex Gaussian signal model. In the end, subspace based blind channel estimation in CDMA are simulated and compared with CRB under linear constraints.
Keywords :
channel estimation; code division multiple access; matrix algebra; mean square error methods; CDMA; CRB; Cramer Rao bound; FIM; Fisher information matrix; MSE; blind channel estimation; complex Gaussian signal model; linear constraint; mean squared error; parameter estimation; Amplitude estimation; Blind equalizers; Channel estimation; Gaussian noise; Multiaccess communication; Parameter estimation; Performance analysis; Phase estimation; Sun; Telecommunications;
Conference_Titel :
Signal Processing, 2004. Proceedings. ICSP '04. 2004 7th International Conference on
Print_ISBN :
0-7803-8406-7
DOI :
10.1109/ICOSP.2004.1441677
