Title :
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
fDate :
Oct. 28 2005-Nov. 1 2005
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;
Conference_Titel :
Signals, Systems and Computers, 2005. Conference Record of the Thirty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
1-4244-0131-3
DOI :
10.1109/ACSSC.2005.1599863
