Statistical Analysis of Decision Threshold for Multi-Carrier CDMA Parallel Acquisition with Reference Filter in a Multipath Fading Channel
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This paper is concerned with a statistical analysis of the decision threshold of the multi-carrier CDMA parallel acquisition system with reference filter. As a mearsure of system perpformance, an expression for the mean acquisition time is derived for the considered system in terms of the probabilities of detection and false alarm. These parameters are analyzed for the multipath fading channel. From the numerical results, it is shown that the statistical evaluation of the decision threshold seems more appropriate in the performance analysis of the MC-CDMA parallel acquisition system with reference filter than the approximation of the decision threshold adopted in [7],[8]. Also, the results show that this scheme provides a sub-optimal threshold value for a wide range of SNR such that the mean acquisition time is minimized.
Abstract
This paper is concerned with a statistical analysis of the decision threshold of the multi-carrier CDMA parallel acquisition system with reference filter. As a mearsure of system perpformance, an expression for the mean acquisition time is derived for the considered system in terms of the probabilities of detection and false alarm. These parameters are analyzed for the multipath fading channel. From the numerical results, it is shown that the statistical evaluation of the decision threshold seems more appropriate in the performance analysis of the MC-CDMA parallel acquisition system with reference filter than the approximation of the decision threshold adopted in [7],[8]. Also, the results show that this scheme provides a sub-optimal threshold value for a wide range of SNR such that the mean acquisition time is minimized.