In this paper, a low-complexity power-efficient iterative detection scheme for differentially encoded MPSK transmission over AWGN and Rayleigh fading channels is presented. As the main contribution, a novel APP coherent demodulator, which well suits for iterative processing, is derived under the optimal bit-based MAP criterion. The implementation of iteration is not trellis-based, and needn’t reconstruct those transmitted symbols, but only independent coded bits are considered. We further provide performance comparison with other accepted soft demodulators, namely BCJR-type, MSDD, DF-DM and traditional differential detection, in terms of complexity analysis and Monte Carlo simulation. More practically, an image is also treated as information source and tested in the end. All results show that it is a right tradeoff, especially in the low SNR operation region.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Low-Complexity Iterative Coherent Detection for Differentially Encoded MPSK


    Beteiligte:
    Zhang, Jun (Autor:in) / Li, Jing (Autor:in) / Peng, Hua (Autor:in)


    Erscheinungsdatum :

    01.05.2008


    Format / Umfang :

    358205 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    A soft decision metric for coherently detected, differentially encoded MPSK systems

    Blasiak,D. / Motorola Cellular Subscriber Group,US | Kraftfahrwesen | 1995



    Multiple-Symbol, Partially Coherent Detection of MPSK

    Simon, Marvin K. / Divsalar, Dariush | NTRS | 1994


    Multiple-Symbol Differential Detection Of MPSK

    Divsalar, Dariush / Simon, Marvin K. | NTRS | 1991


    Double Differential Encoding And Detection In MPSK

    Divsalar, D. / Simon, M. K. | NTRS | 1990