Share This Article:

Effect of Diversity and Filtering on the Performance of Wavelet Packets Base Multicarrier Multicode CDMA System

Abstract Full-Text HTML XML Download Download as PDF (Size:1721KB) PP. 165-179
DOI: 10.4236/jsip.2015.62016    3,932 Downloads   4,228 Views   Citations

ABSTRACT

In Wavelet Packets Based Multicarrier Multicode CDMA system, the multicode (MCD) part ensures the transmission for high speed and flexible data rate, the multicarrier (MC) part ensures the flexibility of handling multiple data rates, and wavelet packets modulation technique contributes to the mitigation of the interference problems. The CDMA system can suppress a given amount of interference. In this paper, the receiver employs suppression filter (SF) to mitigate the effect of narrow-band jammer interference and diversity techniques to reduce multiple access interference. The framework for the system and the performance evaluation are presented in terms of bit error rate (BER) over a Nakagami fading channel. Also, we investigate how the performance is influenced by various parameters, such as the number of taps of the SF, the ratio of narrow-band interference bandwidth to the spread-spectrum bandwidth, the diversity order, the fading parameter and so on. Finally, the performance of the system is compared with the performance Sinusoidal (Sin) based MC/MCD CDMA system.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

Akho-Zahieh, M. and Abdellatif, N. (2015) Effect of Diversity and Filtering on the Performance of Wavelet Packets Base Multicarrier Multicode CDMA System. Journal of Signal and Information Processing, 6, 165-179. doi: 10.4236/jsip.2015.62016.

References

[1] Akho-Zahieh, M.M. (2006) Design and Analysis of Multicarrier Multicode Wavelet Packets Based CDMA Communication Systems With Multiuser Detection. Ph.D. Dissertation, The University of Akron, Akron.
[2] Akho-Zahieh, M.M. and Ugweje, O.C. (2008) Diversity Performance of a Wavelet-Packet-Based Multicarrier Multicode CDMA Communication System. IEEE Transactions on Vehicular Technology, 57, 787-797.
[3] Wang, J.Z. (1999) On the Use of Suppression Filter for CDMA Overlay. IEEE Transactions on Vehicular Technology, 48, 405-414.
[4] Nakagami, N. (1960) The m-Distribution, a General Formula for Intensity Distribution of Rapid Fading. In: Hoffman, W.G., Ed., Statistical Methods in Radio Wave Propagation, Pergamon, Oxford, 3-35.
http://dx.doi.org/10.1016/B978-0-08-009306-2.50005-4
[5] Pursley, M. (1977) Performance Evaluation for Phase-Coded Spread Spectrum Multiple-Access Communication-Part I: System Analysis. IEEE Transactions on Communications, 25, 795-799.
[6] Vandendorpe, L. (1995) Multitone Spread Spectrum Multiple Access Communications System in a Multipath Ricean Fading Channel. IEEE Transactions on Vehicular Technology, 44, 327-337.
[7] Simon, M.K. and Alouini, M.S. (2005) Digital Communication over Fading Channel. 2nd Edition, John Wiley & Sons, Hoboken.
[8] Proakis, J.G. (1995) Digital Communications. 3rd Edition, McGraw-Hill, New York.

  
comments powered by Disqus

Copyright © 2018 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.