Title :
Blind channel estimator for asynchronous DS-CDMA systems
Author :
Jung, Hyung Sung ; Youn, Dae Hee ; Lee, Chungyong
Author_Institution :
Dept. of Electr. & Comput. Eng., Yonsei Univ., Seoul, South Korea
fDate :
5/11/2000 12:00:00 AM
Abstract :
A channel estimator for asynchronous direct sequence code division multiple access (DS-CDMA) systems is proposed which spatio-temporally processes the received signals. It blindly estimates the channel impulse response using the second-order statistics and the subspace concept. Since the proposed estimator exploits data samples of several chip periods so as to perform subspace decomposition for a smaller dimensional data matrix, it is computationally very efficient
Keywords :
code division multiple access; space-time adaptive processing; spread spectrum communication; asynchronous DS-CDMA systems; blind channel estimator; channel impulse response; chip periods; dimensional data matrix; received signals; second-order statistics; spatio-temporal processing; subspace concept; subspace decomposition;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20000650
