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Communication Dans Un Congrès Année : 2013

On the trade-off between spectrum efficiency with dedicated access and short end-to-end transmission delays with random access in DVB-RCS2

Résumé

This paper analyses the performance of TCP over random and dedicated access methods in the context of DVB-RCS2. Random access methods introduce a lower connection delay compared to dedicated methods. We investigate the potential to improve the performance of short flows in regards to transmission delay, over random access methods for DVB-RCS2 that is currently under development. Our simulation experiments show that the transmission of the first ten IP datagrams of each TCP flow can be 500 ms faster with random access than with dedicated access making the former of interest to carry Internet traffic. Such methods, however, are less efficient in regards to bandwidth usage than dedicated access mecanisms and less reliable in overloaded network conditions. Two aspects of channel usage optimization can be distinguished: reducing the duration of ressource utilization with random access methods, or increasing the spectrum efficiency with dedicated access methods. This article argues that service providers may let low-cost users exploit the DVB-RCS2 to browse the web by introducing different services, which choice is based on the channel access method.

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Dates et versions

hal-02552541 , version 1 (23-04-2020)

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Nicolas Kuhn, Huyen-Chi Bui, Jérôme Lacan, José Radzik, Emmanuel Lochin. On the trade-off between spectrum efficiency with dedicated access and short end-to-end transmission delays with random access in DVB-RCS2. the 2013 ACM MobiCom workshop on Lowest cost denominator networking for universal access, Sep 2013, Miami, United States. pp.47, ⟨10.1145/2502880.2502887⟩. ⟨hal-02552541⟩
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