Mobile Lightweight Wireless Systems. Second International ICST Conference, MOBILIGHT 2010, Barcelona, Spain, May 10-12, 2010, Revised Selected Papers

Research Article

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

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  • @INPROCEEDINGS{10.1007/978-3-642-16644-0_1,
        author={Ismahene Ikhlef and Abdellatif Said and Faouzi Soltani and Faouzi Bader},
        title={Performance of MC-DS-CDMA System in Rayleigh Fading Channel with Non-coherent Combining Schemes and MAI Interference},
        proceedings={Mobile Lightweight Wireless Systems. Second International ICST Conference, MOBILIGHT 2010, Barcelona, Spain, May 10-12, 2010, Revised Selected Papers},
        proceedings_a={MOBILIGHT},
        year={2012},
        month={10},
        keywords={CDMA multi-carrier DS-CDMA equal gain combining non- coherent combing scheme},
        doi={10.1007/978-3-642-16644-0_1}
    }
    
  • Ismahene Ikhlef
    Abdellatif Said
    Faouzi Soltani
    Faouzi Bader
    Year: 2012
    Performance of MC-DS-CDMA System in Rayleigh Fading Channel with Non-coherent Combining Schemes and MAI Interference
    MOBILIGHT
    Springer
    DOI: 10.1007/978-3-642-16644-0_1
Ismahene Ikhlef1, Abdellatif Said2,*, Faouzi Soltani1, Faouzi Bader3
  • 1: University of Constantine,(UoC)
  • 2: United Arab Emirates (UAE) University
  • 3: Centre Technologic de Telecomunicacions de Catalunya-CTTC, PMT
*Contact email: abdellatifs@uaeu.ac.ae

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 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.