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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2013-12-04
PN Code Acquisition Using Smart Antenna and Adaptive Thresholding CFAR Based on Ordered Data Variability for CDMA Communications
By
Kamel Berbra,

    Dr. Kamel Berbra

    Department of Electronics

    University of Saad-Dahlab-Blida

    Algeria

    Homepage

Mourad Barkat,
Abderrahmane Anou

    Dr. Abderrahmane Anou

    Department of Electronics

    University of Saad-Dahlab-Blida

    Algeria

    Homepage

Progress In Electromagnetics Research B, Vol. 57, 139-155, 2014
doi:10.2528/PIERB13092403 | Google Scholar

Abstract
Recently, a novel approach for PN code acquisition of direct sequence code division multiple-access (DS-CDMA) systems in Rayleigh fading multipath channel was proposed in [1]. The authors considered a combination of adaptive thresholding constant false alarm rate (CFAR) and smart antennas to increase the system capacity and consequently enhance the detection performance. This paper considers still the problem of PN code acquisition for DS-CDMA communication systems over Rayleigh fading channels under the presence of multipath and multiple-access interference (MAI) signals. We propose and analyze an adaptive array acquisition system, which integrates an adaptive thresholding technique based on ordered data variability (ODV) index constant false alarm rate (ODVCFAR) and digital beamforming where a low complexity least mean square (LMS) algorithm is used to calculate the optimal weighting coefficients. This approach is expected to mitigate interferences caused by the presence of multiple access interference and multipath. Unlike other approaches based on a fixed censoring point when the number of interferences is assumed known, ODV-CFAR processing does not require prior knowledge about the number of interferences. The simulation results show a robust performance of the proposed system in varying mobile communication channels.
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Citation
Kamel Berbra, Mourad Barkat, and Abderrahmane Anou, "PN Code Acquisition Using Smart Antenna and Adaptive Thresholding CFAR Based on Ordered Data Variability for CDMA Communications," Progress In Electromagnetics Research B, Vol. 57, 139-155, 2014.
doi:10.2528/PIERB13092403
References

1. Sofwan, A. and M. Barkat, "PN code acquisition using smart sntennas and adaptive thresholding trimmed-mean CFAR processing for CDMA communication," Spring World Congress on Engineering and Technology, 1-4, May 2012.        Google Scholar

2. Polydoros, A. and C. L. Weber, "A unified approach to serial search spread-spectrum code acquisition --- Part I: General theory," IEEE Transactions on Communications, Vol. 32, No. 5, 542-549, May 1984.
doi:10.1109/TCOM.1984.1096109        Google Scholar

3. Linatti, J., "On the threshold setting principles on code acquisition of DS-SS signals," IEEE Journal on Selected Areas in Communications, Vol. 18, No. 1, 62-72, Jan. 2000.
doi:10.1109/49.821719        Google Scholar

4. Kim, C. J., H. J. Lee, and H. S. Lee, "Adaptive acquisition of PN sequences for DSSS communications," IEEE Transactions on Communications, Vol. 46, No. 8, 993-996, Aug. 1998.
doi:10.1109/26.705393        Google Scholar

5. Kim, C. J., "Adaptive acquisition of PN code in multipath fading mobile channels," Electronics Letters, Vol. 38, No. 2, 135-137, Jan. 2002.
doi:10.1049/el:20020094        Google Scholar

6. Benkrinah, S. and M. Barkat, "An adaptive acquisition using order statistic CFAR in DS-CDMA serial search for a multipath Rayleigh fading channel," Proceedings of the Third IEEE International Conference on Systems, Signals and Devices, 2005.        Google Scholar

7. Finn, H. M. and R. S. Johnson, "Adaptive detection mode with threshold control as a function of spatially sampled clutter level estimates," RCA Review, Vol. 29, 414-464, Sep. 1968.        Google Scholar

8. Barkat, M., Signal Detection and Estimation, 2nd Ed., Artech House, 2005.

9. Kedia, D., "Comparative analysis of peak correlation characteristics of non-orthogonal spreading codes for wireless systems," International Journal of Distributed and Parallel Systems (IJDPS), Vol. 3, No. 3, 63-74, May 2012.
doi:10.5121/ijdps.2012.3307        Google Scholar

10. Zhang, X., X. Gao, and Z. Wang, "Blind paralind multiuser detection for smart antenna CDMA system over multipath fading channel," Progress In Electromagnetics Research, Vol. 89, 23-38, 2009.
doi:10.2528/PIER08112903        Google Scholar

11. Godara, L. C., Smart Antennas, 1st Ed., CRC Press LLC, 2004.
doi:10.1201/9780203496770

12. Wang, B. and H. M. Kwon, "PN code acquisition using smart antenna for spread-spectrum wireless communications ---| Part I," IEEE Transactions on Vehicular Technology, Vol. 52, No. 1, 142-149, Jan. 2003.
doi:10.1109/TVT.2002.807152        Google Scholar

13. Wang, B. and H. M. Kwon, "PN code acquisition for DS-CDMA systems employing smart antennas --- Part II," IEEE Transactions on Wireless Communications, Vol. 2, No. 1, 108-117, Jan. 2003.
doi:10.1109/TWC.2002.806370        Google Scholar

14. Gandhi, P. P. and S. A. Kassam, "Analysis of CFAR processors in nonhomogeneous background," IEEE Transactions on Aerospace and Electronic Systems, Vol. 24, No. 4, 427-445, Jul. 1988.
doi:10.1109/7.7185        Google Scholar

15. Alhariqi, N., M. Barkat, and A. Sofwan, "Serial PN acquisition using smart antenna and censored mean level CFAR adaptive thresholding for a DS/CDMA mobile communication," 14th IEEE International Conference on High Performance Computing and Communications (HPCC 2012), 1193-1198, Jun. 2012.        Google Scholar

16. Rickard, J. T. and Adaptive detection algorithms for multiple-target situations, "Adaptive detection algorithms for multiple-target situations," IEEE Transactions on Aerospace and Electronic Systems, Vol. 13, No. 4, 338-343, Jul. 1977.
doi:10.1109/TAES.1977.308466        Google Scholar

17. Ritcey, J. A., "Performance analysis of the censored mean-level detector," IEEE Transactions on Aerospace and Electronic Systems, Vol. 22, No. 4, 443-454, Jul. 1986.
doi:10.1109/TAES.1986.310780        Google Scholar

18. Smith, M. E. and P. K. Varshney, "Intelligent CFAR processor based on data variability," IEEE Transactions on Aerospace and Electronic Systems, Vol. 36, No. 3, 837-847, Jul. 2000.
doi:10.1109/7.869503        Google Scholar

19. Himonas, S. D. and M. Barkat, "Automatic censored CFAR detection for nonhomogeneous environments," IEEE Transactions on Aerospace and Electronic Systems, Vol. 28, No. 1, 286-304, Jan. 1992.
doi:10.1109/7.135454        Google Scholar

20. Barboy, B., A. Lomes, and E. Perkalski, "Cell-averaging CFAR for multiple-target situations," IEE Proceedings --- Radar, Sonar and Navigation, Vol. 133, No. 2, 176-186, 1986.        Google Scholar

21. Barkat, M., S. D. Himonas, and P. K. Varshney, "CFAR detection for multiple target situations," IEE Proceedings | Radar, Sonar and Navigation, Vol. 136, No. 5, 193-209, 1989.        Google Scholar

22. Prastitis, L. A., J. Frank, and S. D. Himonas, "Automatic censored cell averaging CFAR detector in nonhomogeneous clutter," 1992 International Radar Conference, 218-221, Oct. 1992.
doi:10.1109/TSP.2007.896239        Google Scholar

23. LehtomÄaki, J., J. Vartiainen, M. J. Juntti, and H. Saarnisaari, "CFAR outlier detection with forward methods," IEEE Transactions on Signal Processing, Vol. 55, No. 9, 4702-4706, 2007.
doi:10.3724/SP.J.1004.2009.00903        Google Scholar

24. Liu, P.-Z. and C.-Z. Han, "Distributed automatic censored cell-averaging CFAR detector," Acta Automatica Sinica, Vol. 35, No. 7, 903-910, 2009.        Google Scholar

25. Proakis, J. G., Digital Communications, 3rd Ed., McGraw-Hill, 1995.
doi:10.1109/25.966590

26. Song, Y. S., H. M. Kwon, and B. J. Min, "Computationally effcient smart antennas for CDMA wireless communications," IEEE Transactions on Vehicular Technology, Vol. 50, No. 6, 1613-1628, 2001.        Google Scholar

27. Buehrer, R. M., Code Division Multiple Access (CDMA), 1st Ed., Morgan & Claypool, 2006.
doi:10.1109/25.923073

28. Yang, L.-L. and L. Hanzo, "Serial acquisition of DS-CDMA signals in multipath fading mobile channels," IEEE Transactions on Vehicular Technology, Vol. 50, No. 2, 617-628, Mar. 2001.
doi:10.1109/26.917779        Google Scholar

29. Shin, O. S. and K. B. Lee, "Utilization of multipath for spread-spectrum code acquisition in frequency-selective Rayleigh fading channels," IEEE Transactions on Communication, Vol. 49, No. 4, 734-743, Apr. 2001.        Google Scholar

30. Berbra, K., M. Barkat, and B. Atrouz, "Analysis of the CMLD in K-distributed clutter for fully correlated/uncorrelated texture," Proceedings of the 1999 International Radar Conference, May 1999.
doi:10.1109/TAES.1983.309350        Google Scholar

31. Rohling, H., "Radar CFAR thresholding in clutter and multiple target situations," IEEE Transactions on Aerospace and Electronic Systems, Vol. 19, No. 4, 608-621, Jul. 1983.        Google Scholar

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