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Improving web experience on DVB-RCS2 links

Kuhn, Nicolas and Mehani, Olivier and Bui, Huyen Chi and Lochin, Emmanuel and Lacan, Jérôme and Radzik, José and Boreli, Roksana Improving web experience on DVB-RCS2 links. (2015) Annals of Telecommunications. 1-20. ISSN 0003-4347

(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: http://dx.doi.org/10.1007/s12243-015-0467-6


The specifications of Digital Video Broadcasting - Return Channel via Satellite(DVB-RCS2) state that the satellite gateway could introduce both random and dedicated access methods to distribute the capacity among the different home users. Before starting an engineering process to design an algorithm allowing to combine both methods, it seems necessary to assess the performance of each. This paper compares random and dedicated access methods by measuring their impact on the performance of Transmission Control Protocol (TCP) sessions when the home users exploit the DVB-RCS2 link for regular use (e.g., web browsing or email transmission). In this paper we detail the implementation of an NS-2 module emulating Physical Channel Access (PCA). This module fills a gap in terms of random and deterministic access methods and allows to model various satellite channel access strategies. Based on NS-2 simulations using realistic system parameters of the DVB-RCS2 link, we demonstrate that, compared to dedicated access methods, which generally result in higher levels of transmitted data, random access methods enable faster transmission for short flows. We propose to combine random and dedicated access methods, with the selection of a specific method dependent on the dynamic load of the network and the sequence number of the TCP segments.

Item Type:Article
Additional Information:Thanks to Springer editor. The definitive version is available at http://link.springer.com/. The original PDF of the article can be found at annals of telecommunications - annales des télécommunications website : http://link.springer.com/article/10.1007%2Fs12243-015-0467-6
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut Supérieur de l'Aéronautique et de l'Espace - ISAE-SUPAERO (FRANCE)
Other partners > Institut Mines-Télécom (FRANCE)
Other partners > National ICT Australia - NICTA (AUSTRALIA)
Laboratory name:
Deposited On:04 Sep 2015 07:27

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