Title :
DS-CDMA synchronization with dual-antenna in unknown correlated noise
Author :
Ma, Yugang ; Ye, G.T. ; Li, K.H. ; Kot, Alex C.
Author_Institution :
Res. Lab., Sony Electron. Pte Ltd., Singapore
Abstract :
We consider the propagation delay estimation of a direct-sequence code-division multiple-access (DS-CDMA) system in unknown correlated noise. The new propagation delay estimation method proposed here is based on generalized correlation decomposition (GCD). First, the received signal with a dual-antenna through a flat-fading channel is modeled. Then, two GCD-based propagation delay estimators: dual-antenna singular value decomposition (SVD) and dual-antenna canonical correlation decomposition (CCD) estimators are presented and compared with common MUSIC estimator. Simulation results show that the proposed estimators, especially the dual-antenna CCD estimator, are robust against the near-far problem and outperform the common MUSIC estimator in unknown correlated noise
Keywords :
code division multiple access; correlation methods; fading channels; multiuser channels; noise; parameter estimation; singular value decomposition; spread spectrum communication; synchronisation; BPSK; DS-CDMA synchronization; MUSIC estimator; SVD estimator; canonical correlation decomposition estimator; correlated noise; direct-sequence code-division multiple-access; dual-antenna; flat-fading channel; generalized correlation decomposition; near-far problem; propagation delay estimation; received signal; simulation results; singular value decomposition estimator; Antennas and propagation; Background noise; Charge coupled devices; Degradation; Delay estimation; Multiaccess communication; Multiple signal classification; Propagation delay; Sensor arrays; Singular value decomposition;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891712
