Interference avoidance for DS-CDMA with limited feedback

Author

Santipach, Wiroonsak ; Honig, Michael L.

Author_Institution

Dept. of Electr. & Comput. Eng., Northwestern Univ., Evanston, IL, USA

fYear

2003

fDate

29 June-4 July 2003

Firstpage

445

Abstract

The performance of a direct sequence (DS)-code division multiple access (CDMA) link with limited feedback in the presence of random interferers is analyzed in this paper. We evaluate the performance of a reduced-rank (RR) signature optimization scheme with a linear minimum mean squared error (MMSE) receiver, and subsequently account for the feedback quantization error. The performance is compared with a random vector quantization scheme for signature selection, which gives an upper bound on large system performance.

Keywords

code division multiple access; least mean squares methods; numerical analysis; optimisation; radio receivers; spread spectrum communication; DS-CDMA link; MMSE receiver; direct sequence code division multiple access; feedback quantization error; linear minimum mean squared error; random interferers; reduced-rank signature optimization scheme; Code division multiplexing; Feedback; Interference; Multiaccess communication; Performance analysis; Signal to noise ratio; System performance; Transmitters; Upper bound; Vector quantization;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory, 2003. Proceedings. IEEE International Symposium on

Print_ISBN

0-7803-7728-1

Type

conf

DOI

10.1109/ISIT.2003.1228462

Filename

1228462