Technical considerations for the Mobile Satellite Experiment (MSAT-X), the ground segment testbed for the low-cost spectral efficient satellite-based mobile communications technologies being developed for the 1990's, are discussed. The Network Management Center contains a flexible resource sharing algorithm, the Demand Assigned Multiple Access scheme, which partitions the satellite transponder bandwidth among voice, data, and request channels. Satellite use of multiple UHF beams permits frequency reuse. The backhaul communications and the Telemetry, Tracking and Control traffic are provided through a single full-coverage SHF beam. Mobile Terminals communicate with the satellite using UHF. All communications including SHF-SHF between Base Stations and/or Gateways, are routed through the satellite. Because MSAT-X is an experimental network, higher level network protocols (which are service-specific) will be developed only to test the operation of the lowest three levels, the physical, data link, and network layers.


    Access

    Access via TIB

    Check availability in my library


    Export, share and cite



    Title :

    Network design consideration of a satellite-based mobile communications system


    Contributors:
    Yan, T.-Y. (author)

    Publication date :

    1986-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English






    Mobile Satellite Communications System

    Nakamura, H. | British Library Online Contents | 1999


    Cost consideration for future communications satellite

    Iida, T. / International Astronautical Federation | British Library Conference Proceedings | 2003


    Cost consideration for future communications satellite

    Iida, Takashi | Online Contents | 2003