Performance Analysis of an Adaptive Hybrid Search Code Acquisition Algorithm for DS-CDMA Systems 


Vol. 30,  No. 3, pp. 83-91, Mar.  2005


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  Abstract

We analyze the performance of an adaptive hybrid search code acquisition algorithm for direct-sequence code division multiple access (DS-CDMA) systems under slowly-moving mobile environments. The code acquisition algorithm is designed to provide the desired feature of constant false alarm rate (CFAR) to cope with nonstationarity of the interference in CDMA forward links. An analytical expression for the mean acquisition time is first derived and the probabilities of detection, miss, and false alarm are then obtained for frequency-selective Rayleigh fading environments. The fading envelope of a received signal is assumed to be constant over the duration of post-detection integration (PDI), considering slow fading environments. Finally, the performance of the designed code acquisition algorithm shall be evaluated numerically to examine the effect of some design parameters such as the sub-window size, size of the PDI, decision threshold, and so on, considering cdma2000 environments.

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  Cite this article

[IEEE Style]

H. r. Park and Y. s. Yang, "Performance Analysis of an Adaptive Hybrid Search Code Acquisition Algorithm for DS-CDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 3, pp. 83-91, 2005. DOI: .

[ACM Style]

Hyung rae Park and Yeon sil Yang. 2005. Performance Analysis of an Adaptive Hybrid Search Code Acquisition Algorithm for DS-CDMA Systems. The Journal of Korean Institute of Communications and Information Sciences, 30, 3, (2005), 83-91. DOI: .

[KICS Style]

Hyung rae Park and Yeon sil Yang, "Performance Analysis of an Adaptive Hybrid Search Code Acquisition Algorithm for DS-CDMA Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 3, pp. 83-91, 3. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880