Title :
Channel estimation for multirate DS-CDMA systems
Author :
Bhashyam, Srikrishna ; Sabharwal, Ashutosh ; Mitra, Urbashi
Author_Institution :
Rice Univ., Houston, TX, USA
fDate :
Oct. 29 2000-Nov. 1 2000
Abstract :
The problem of channel estimation for multiple data rate direct-sequence code-division multiple-access (DS-CDMA) systems is addressed. The derived algorithms are suitable for both variable chipping rate and/or variable spreading multirate systems. Furthermore, methods for uplink and downlink channel estimation are investigated. It is observed that direct exploitation of the multirate nature of the signal yields improved performance. The algorithms are evaluated via simulation.
Keywords :
cellular radio; code division multiple access; estimation theory; multiuser channels; spread spectrum communication; channel estimation; downlink; multiple data rate direct-sequence code-division multiple-access system; multirate DS-CDMA systems; performance; uplink; variable chipping rate system; variable spreading multirate systems; Availability; Bandwidth; Channel estimation; Downlink; Feedback; Multiaccess communication; Multiple access interference; Multiuser channels; Proposals; Telephone sets;
Conference_Titel :
Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-7803-6514-3
DOI :
10.1109/ACSSC.2000.910656
