DS-CDMA PN code acquisition in Rayleigh Fading Channel.

Sharif, MY, Obiebi, Job and Sharp, John (2006) DS-CDMA PN code acquisition in Rayleigh Fading Channel. Mediterranean Journal of Electronics & Communications, 2 (2). pp. 59-71. ISSN 1744-2400

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In this paper, an adaptive double dwell PN code acquisition circuit suitable for use in DS-CDMA systems is proposed. The adaptive nature of the circuit is based on the cell averaging constant false alarm rate technique. It is analysed in a Rayleigh fading channel taking into consideration the effect of Doppler shift, multiple access interference and frequency offset. Expressions are derived for detection probability, false alarm rate and mean acquisition time. Numerical analysis showed that the proposed method is more robust to noise conditions than a non-adaptive method. Moreover, the proposed method uses less hardware components.

Item Type: Article
Print ISSN: 1744-2400
Uncontrolled Keywords: Spread Spectrum Communication; DS-CDMA, Matched Filter; CA-CFAR Processor; Rayleigh Fading Channel; and MAI.
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 600 Technology > 620 Engineering > 621 Electronic & mechanical engineering
000 Computer science, information & general works > 000 Computer science, knowledge & systems > 005 Computer programming, programs & data
Library of Congress Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QA Mathematics > QA76 Computer software
Item ID: 1848
Depositing User: RAE Import
Date Deposited: 30 Apr 2008 14:05
Last Modified: 10 Apr 2013 10:58

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