We consider the problem of blind (i.e., without training sequence) mitigation of both intersymbol interference (LSI) and multiple-access interference (MAI) in the uplink of asynchronous direct-sequence code-division multiple-access (DS-CDMA) systems transmitting over time-dispersive channels. The proposed method exploits the knowledge (certainly available at the base-station site) of the spreading codes belonging to a group of the active users to directly extract the detector parameters from the received data, without requiring an explicit channel identification step. Simulation results show that the proposed group-blind receiver outperforms the existing blind methods, for small to moderate values of the sample-size.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Direct group-blind multiuser detection for DS-CDMA systems in dispersive channels


    Contributors:
    Gelli, G. (author) / Milano, S. (author) / Paura, L. (author) / Verde, F. (author)


    Publication date :

    2003-01-01


    Size :

    437892 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Direct Group-Blind Multiuser Detection for DS-CDMA Systems in Dispersive Channels

    Gelli, G. / Milano, S. / Paura, L. et al. | British Library Conference Proceedings | 2003



    Timing-Free Blind Multiuser Detection for Multicarrier DS/CDMA Systems with Multiple Antennas

    Buzzi, S. / Grossi, E. / Lops, M. et al. | British Library Conference Proceedings | 2003


    Blind Iterative Receiver for Multiuser MIMO Systems

    Khan, E. / Slock, D. / IEEE | British Library Conference Proceedings | 2003