Performance analysis of a double-dwell serial search technique for cellular CDMA networks in the case of multiple pilot signals

In this paper, the performance of a double-dwell serial search technique is analyzed for cellular code-division multiple-access (CDMA) networks in the case of multiple pilot signals. A general expression for the mean acquisit ion time is obtained by considering the multiple H-1 regions formed by the pilot signals coming from different base stations. The statistics of the de modulator output in code acquisition systems are discussed in detail for sy nchronous cellular CDMA networks with a focus on the nonstationarity of the interference in the forward link. The probabilities of detection and false alarm are then derived for frequency-selective Rayleigh fading environment s in the case where the interference can be approximated by a stationary Ga ussian noise process. Numerical evaluations shall be performed to examine t he effects of decision thresholds, postdetection integration, fading rate, and so on, with emphasis on the case where the mobile station is located ar ound the cell boundary.