Performance evaluation of selected Transmission Control Protocol variants over a digital video broadcasting-second generation broadband satellite multimedia system with QoS

Rendon-Morales, Elizabeth, Mata-Diaz, Jorge, Alins, Juanjo, Munoz, Jose L and Esparza, Oscar (2013) Performance evaluation of selected Transmission Control Protocol variants over a digital video broadcasting-second generation broadband satellite multimedia system with QoS. International Journal of Communication Systems, 26 (12). pp. 1579-1598. ISSN 1074-5351

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Abstract

This paper presents an analysis of several Transmission Control Protocol (TCP) variants working over a digital video broadcasting-second generation (DVB-S2) satellite link with the support of the Differentiated Services (DiffServ) architecture to provide quality of service (QoS). This analysis is carried out using the NS-2 simulator tool. Three TCP variants are considered: SACK TCP, Hybla TCP, and CUBIC TCP. These TCP variants are taken as a starting point because they have proven to be the most suitable variants to deal with long delays present in satellite links. The DVB-S2 link also introduces the challenge of dealing with variable bandwidth, whereas the DiffServ architecture introduces the challenge of dealing with different priorities. In this paper, we propose a DiffServ model that includes a modified queuing mechanism to enhance the goodput of the assured forwarding traffic class. This modified DiffServ model is simulated and tested, considering the interaction of the selected TCP variants. In addition, we present evaluation metrics, significant simulations results, and conclusions about the performance of these TCP variants evaluated over the proposed scenario. As a general conclusion, we show that CUBIC TCP is the TCP variant that shows the best performance in terms of goodput, latency, and friendliness

Item Type: Article
Schools and Departments: School of Education and Social Work > Education
Subjects: T Technology
T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television > TK5103.2 Wireless communication systems
T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication Including telegraphy, telephone, radio, radar, television > TK5105.5 Computer networks. General works > TK5105.55 Computer network protocols. Standards. General works
Depositing User: Elizabeth Rendon Morales
Date Deposited: 29 Oct 2015 12:02
Last Modified: 29 Oct 2015 12:02
URI: http://sro.sussex.ac.uk/id/eprint/57393
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