Leveraging a mixture of government-owned and commercial Satellite Communication (SATCOM) systems to provide global coverage with improved network throughputs and reliability has attracted attention from both academia and industry for years. However, utilizing multiple SATCOM services simultaneously through different satellite networks requires sophisticated traffic management due to large differences in connection properties. For example, commercial Non-GeoStationary Orbit (NGSO) Satellite Communication (SATCOM) networks have advantages of higher network throughputs, much lower propagation delay and more flexible on-demand services compared to Geosynchronous Equatorial Orbit (GEO) SATCOM systems. Global Network Access Terminal (GNAT) is considered herein as a potential solution designed and developed to provide Internet access utilizing multiple SATCOM services for improved throughput, delay, and reliability. In this paper, we propose a novel intelligent dynamic network traffic management solution based on Deep Reinforcement Learning (DRL) to better distribute the application traffics to different SATCOM networks. Specifically, we employ DRL to the GNAT control unit to generate a policy that maps measured network states to the optimal traffic distribution. The GNAT system periodically measures the network states, in terms of bandwidth and latency and determines the actions on distributing the traffic flows toward better network performance. Besides, the DRL-based solution will initially learn a policy and then improve this policy by continuously interacting with the GNAT system. To evaluate our solution and facilitate further research, we implement a testbed consisted of the GNAT hardware integrated with our proposed solution and a simulated network environment. Evaluation results are presented to prove that our solution outperforms the state-of-the-art techniques.


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    Titel :

    Intelligent dynamic network traffic management for global network access terminal


    Beteiligte:
    Zhao, Q. (Autor:in) / Tian, X. (Autor:in) / Li, Y. (Autor:in) / Pham, K. D. (Autor:in) / Lyke, J. C. (Autor:in) / Chen, G. (Autor:in)


    Erscheinungsdatum :

    01.01.2021


    Format / Umfang :

    458078 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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