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

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1 Author(s)
Hyung-Rae Park ; C&S Technol. Inc., Seoul, South Korea

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 acquisition time is obtained by considering the multiple H1 regions formed by the pilot signals coming from different base stations. The statistics of the demodulator output in code acquisition systems are discussed in detail for synchronous 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 environments in the case where the interference can be approximated by a stationary Gaussian noise process. Numerical evaluations are performed to examine the effects of decision thresholds, postdetection integration, fading rate, and so on, with emphasis on the case where the mobile station is located around the cell boundary

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Vehicular Technology, IEEE Transactions on  (Volume:48 ,  Issue: 6 )