Advertisement

Performance of MC-DS-CDMA System in Rayleigh Fading Channel with Non-coherent Combining Schemes and MAI Interference

  • Ismahene Ikhlef
  • Abdellatif Said
  • Faouzi Soltani
  • Faouzi Bader
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 45)

Abstract

In this paper, we analyzed the multi – carrier direct sequence code division multiple access system when the received signal is divided into predetermined spreading sequences, and the sub - bands are modulated over M carriers. Because of the unknown phase of the received signal at each sub-band the receiver cannot coherently combine the outputs of the correlators. We consider in this paper non-coherent combining scheme (equal gain combining) with MAI interferences. The calculation of the probabilities of detection and false alarm for both multicarrier (MC) and single carrier (SC) system in a Rayleigh fading channel demonstrated that the performances of the multicarrier system are better than those with single carrier system. Obtained results demonstrated that the suppression (or the mitigation) of appeared interferences is obtained by the increase of the number of system carriers.

Keywords

CDMA multi-carrier DS-CDMA equal gain combining non- coherent combing scheme 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Cook, C.E., Ellersick, F.W., Milstein, L.B., Schilling, D.L.: Spread-Spectrum Communications. IEEE Press, Inc., New York (copyright 1983)Google Scholar
  2. 2.
    Rowitch, D.N., Milstein, L.B.: Convolutional coded multicarrier DS-CDMA in-a multipath channel-part I. IEEE Trans. Commun. 47(10), 1570–1582 (1999)CrossRefGoogle Scholar
  3. 3.
    Pickholtz, R.L., Schilling, D.L., Milstein, L.B.: Theory of spread spectrum communications-A tutorial. IEEE Trans. Commun. COM-30(5) (May 1982)Google Scholar
  4. 4.
    Yang, L.L., Hanzo, L.: Serial acquisition performance of single-carrier and multicarrier DS-CDMA over Nakagami-m Fading channels. IEEE. Trans. on Commun. 1(4), 692–702 (2002)Google Scholar
  5. 5.
    Lee, D., Milstein, L.B., Lee, H.: Analysis of multicarrier DS-CDMA code–acquisition system. IEEE Trans. Commun. 47(8), 1233–1243 (1999)CrossRefGoogle Scholar
  6. 6.
    Kondo, S., Milstein, L.B.: On the performance of multicarrier DS-CDMA systems. IEEE Trans. Commun. 44, 238–246 (1996)CrossRefGoogle Scholar
  7. 7.
    Bingham, J.: Multicarrier modulation for data transmission: An idea whorse time has come. IEEE Commun. Mag. (May 1990)Google Scholar
  8. 8.
    Wong, T.F., Lok, T.M., Lehnert, J.S.: Asynchronous multiple-access interference suppression and chip waveform selection with aperiodic random sequences. IEEE Trans. Commun. 47(1), 103–114 (1999)CrossRefGoogle Scholar
  9. 9.
    Nguyen, H.H.: Effect of chip waveform shaping on the performance of multicarrier CDMA systems. IEEE Transactions on vehicular technology 54(3), 1022–1029 (2005)CrossRefGoogle Scholar
  10. 10.
    Coulon, F.: Theory and treatment of signals. Edition Georgi. Dunod, Paris (1984)MATHGoogle Scholar
  11. 11.
    Viterbi, A.J.: CDMA principles of spread spectrum communication. Addison Wesley Longman, Inc., Amsterdam (copyright 1995)MATHGoogle Scholar

Copyright information

© ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering 2010

Authors and Affiliations

  • Ismahene Ikhlef
    • 1
  • Abdellatif Said
    • 2
  • Faouzi Soltani
    • 1
  • Faouzi Bader
    • 3
  1. 1.Faculty of Engineering, Department of ElectronicsUniversity of Constantine,(UoC)ConstantineAlgeria
  2. 2.UGRU- Math/ITUnited Arab Emirates (UAE) UniversityAl Ain;Abu DhabiUAE
  3. 3.Centre Technologic de Telecomunicacions de Catalunya-CTTC, PMTBarcelonaSpain

Personalised recommendations