Chip waveform selection in asynchronous DS-CDMA systems with interference suppression

Author

Wong, Tan F. ; Lehnert, James S. ; Lok, Tat M.

Author_Institution

Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA

fYear

1997

fDate

12-16 Oct 1997

Firstpage

208

Abstract

In this work, the problem of chip waveform selection in asynchronous DS-CDMA systems with a decentralized receiving structure is investigated. The receiving structure is capable of suppressing multiple access interference (MAI). Aperiodic random signature sequences are employed in the DS-CDMA system. Performance bounds based on the signal-to-noise ratio of the decision statistic provided by the receiver are obtained. Using the bounds as performance measures, the use of different chip waveforms in DS-CDMA systems with the proposed receiver is examined

Keywords

code division multiple access; interference suppression; land mobile radio; radio receivers; radiofrequency interference; spread spectrum communication; waveform analysis; DS-CDMA; aperiodic random signature sequences; asynchronous DS-CDMA systems; chip waveform selection; decentralized receiving structure; decision statistic; interference suppression; multiple access interference; performance bounds; signal-to-noise ratio; Correlators; Interference suppression; Multiaccess communication; Multiple access interference; Pressing; Random sequences; Random variables; Semiconductor device measurement; Signal to noise ratio; Statistics;

fLanguage

English

Publisher

ieee

Conference_Titel

Universal Personal Communications Record, 1997. Conference Record., 1997 IEEE 6th International Conference on

Conference_Location

San Diego, CA

ISSN

1091-8442

Print_ISBN

0-7803-3777-8

Type

conf

DOI

10.1109/ICUPC.1997.625545

Filename

625545