Title :
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
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;
Conference_Titel :
Vehicular Technology Conference, 1995 IEEE 45th
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-2742-X
DOI :
10.1109/VETEC.1995.504875
