The performance of convolutional coding is analyzed with reference to a land mobile radio channel. A two-state channel model is developed to determine the performance as a function of the probability of occurrence and duration of the fades. Using computer simulation, the relationship that exists between the Doppler frequency, the amount of diversity, the interleaving depth, and the bit error rate is shown. Coding is shown to provide a significant gain if the fades are relatively short. Using a feedback channel, an adaptive coding strategy uses punctured and repeated convolutional codes to achieve a variable-rate coding scheme. This adaptive coding strategy yields an appreciable coding gain even when long fades are present.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    An analysis of convolutional coding for land mobile channels


    Weitere Titelangaben:

    Eine Untersuchung ueber den Einsatz von Faltungscodes fuer den beweglichen Landfunkdienst


    Beteiligte:
    Gagnon, F. (Autor:in) / Haccoun, D. (Autor:in) / Leung, C. (Autor:in)


    Erscheinungsdatum :

    1989


    Format / Umfang :

    5 Seiten, 6 Quellen


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Reliable Multicast for Land-Mobile Satellite Channels

    Ernst, Harald / Donner, Anton / Shabdanov, Samat et al. | AIAA | 2003


    Varible-rate sub-band speech coding and matched channel coding for mobile radio channels

    Hagenauer,J. / Seshadri,N. / Sundberg,C-E. et al. | Kraftfahrwesen | 1988


    AIAA-2003-2380 Reliable Multicast for Land-Mobile Satellite Channels

    Donner, A. / Shabdanov, S. / Scalise, S. et al. | British Library Conference Proceedings | 2003



    Spectrum efficient digital communications for 220-222 MHz narrowband land mobile channels

    Froelich,S. / United Parcel Service,US | Kraftfahrwesen | 1993