Channel estimation for multirate DS-CDMA systems

Author

Bhashyam, Srikrishna ; Sabharwal, Ashutosh ; Mitra, Urbashi

Author_Institution

Rice Univ., Houston, TX, USA

Volume

2

fYear

2000

fDate

Oct. 29 2000-Nov. 1 2000

Firstpage

960

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2000. Conference Record of the Thirty-Fourth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-7803-6514-3

Type

conf

DOI

10.1109/ACSSC.2000.910656

Filename

910656