Optimization of signature sequences and receiver filters for downlink DS-CDMA systems

Author

Dahl, Joachim ; Fleury, Bernard H. ; Jensen, Søren H. ; Stoustrup, Jakob

Author_Institution

Dept. of Commun. Technol., Aalborg Univ., Denmark

Volume

5

fYear

2003

fDate

11-15 May 2003

Firstpage

3272

Abstract

Joint optimization of both signature sequences and linear receiver filters for a downlink DS-CDMA system with multipath propagation channels is considered. The signature sequences and the receiver filters are optimized in order to minimize the sum of the mean-squared-errors at the output of the receivers while maintaining a fixed total transmitting power. The signature sequences and receiver filters are derived using a filtering approach to accommodate for the multipath propagation effects.

Keywords

code division multiple access; digital filters; mean square error methods; multipath channels; optimisation; spread spectrum communication; direct sequence code division multiple access; downlink DS-CDMA systems; filtering approach; frequency selective channel; linear receiver filters; mean-squared-errors; multipath propagation channels; optimization; signature sequences; Communications technology; Control engineering; Downlink; Filtering; Intersymbol interference; Multiaccess communication; Multiple access interference; Multiuser detection; Nonlinear filters; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2003. ICC '03. IEEE International Conference on

Print_ISBN

0-7803-7802-4

Type

conf

DOI

10.1109/ICC.2003.1204046

Filename

1204046