A Multiple Antenna Cyclostationary Receiver for Aperiodic CDMA Signals

Author

Venkataraman, Vishwanath ; Shynk, John J. ; Gooch, Richard P.

Author_Institution

Deptartment of Electr. & Comput. Eng., California Univ., Santa Barbara, CA

fYear

2005

fDate

Oct. 28 2005-Nov. 1 2005

Firstpage

798

Lastpage

801

Abstract

In an aperiodic code-division multiple-access (CDMA) system, the spreading sequences are designed to span multiple symbols. Since the spreading sequences are cyclostationary, this property can be exploited to derive channel equalization and interference rejection algorithms. Multiple antenna elements can be coupled with adaptive equalization to offer significant performance gains over that achieved by a similar system with only one antenna. In this paper, we investigate a multiple antenna cyclostationary receiver with a parallel architecture for an aperiodic CDMA signal that converts an aperiodic sequence into piecewise periodic sequences. The performance of the proposed receiver is evaluated for a real downlink aperiodic CDMA signal, and it is compared with that of a conventional matched filter (MF) receiver. The number of correctly decoded paging channel messages is used as the performance measure

Keywords

adaptive equalisers; antenna arrays; channel coding; code division multiple access; interference suppression; paging communication; radio receivers; spread spectrum communication; wireless channels; adaptive equalization; aperiodic CDMA signals; aperiodic code-division multiple-access system; channel equalization; interference rejection algorithms; multiple antenna cyclostationary receiver; paging channel messages; parallel architecture; spreading sequences; Adaptive arrays; Adaptive equalizers; Decoding; Downlink; Interference; Matched filters; Multiaccess communication; Parallel architectures; Performance gain; Receiving antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA

ISSN

1058-6393

Print_ISBN

1-4244-0131-3

Type

conf

DOI

10.1109/ACSSC.2005.1599863

Filename

1599863