Rain granularity effects on bandwidth demand for faded DVB-RCS systems

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    Abstract

    Broadband satellite communication networks, operating at Ka band and above, play a vital role in today’s worldwide telecommunication infrastructure. The problem, however, is that rain can be the most dominant impairment factor for radio propagation above 10 GHz. This paper studies bandwidth and time slot allocation problem for rain faded DVB-RCS satellite networks. We investigate how using finer rain granularity can improve bandwidth utilization in DVB-RCS return links. The paper presents a mathematical model to calculate the bandwidth on demand. We formulate the radio resource allocation as an optimization problem and propose a novel algorithm for dynamic carrier bandwidth and time slots allocation, which works with constant bit rate type of traffic. We provide theoretical analysis for the time slot allocation problem and show that the proposed algorithm achieves optimal results. The algorithm is evaluated using a MATLAB simulation with historical rain data for the UK.
    Original languageEnglish
    Pages (from-to)241-257
    Number of pages17
    JournalInternational Journal of Satellite Communications and Networking
    Volume33
    Issue number3
    Early online date25 Aug 2014
    DOIs
    Publication statusPublished - 1 May 2015

    Keywords

    • DVB-RCS
    • Fade mitigation
    • Radio resource allocation

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