On serial search code acquisition for direct-sequence spread spectrum system: an application to IS-95 CDMA system

Author

Park, Hyung Rae ; Kang, Bub Joo

Author_Institution

Signal Process. Sect., Electron. & Telecommun. Res. Inst., Taejon, South Korea

Volume

1

fYear

1995

fDate

25-28 Jul 1995

Firstpage

291

Abstract

A double-dwell serial code acquisition system employing an adaptive threshold estimator is described and analyzed in frequency-selective Rayleigh fading channel. A general expression for the mean acquisition time is derived by considering the multiple H₁ cells and the `returning´ false alarm state. The problem of selecting the design parameters of the code acquisition system for CDMA forward link is also addressed based on the statistics of CDMA noncoherent QPSK demodulator output

Keywords

Rayleigh channels; adaptive estimation; code division multiple access; fading; land mobile radio; pseudonoise codes; quadrature phase shift keying; search problems; spread spectrum communication; CDMA forward link; CDMA noncoherent demodulator output; IS-95 CDMA system; adaptive threshold estimator; direct-sequence spread spectrum system; double-dwell serial code acquisition system; frequency-selective Rayleigh fading channel; mean acquisition time; multiple H₁ cells; returning false alarm state; serial search code acquisition; Adaptive systems; Demodulation; Fading; Frequency estimation; Genetic expression; Mobile communication; Multiaccess communication; Spread spectrum communication; Statistics; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 1995 IEEE 45th

Conference_Location

Chicago, IL

ISSN

1090-3038

Print_ISBN

0-7803-2742-X

Type

conf

DOI

10.1109/VETEC.1995.504875

Filename

504875