Title :
Improving Performance of TCP-Based Applications over DVB-RCS Links
Author :
Luglio, M. ; Roseti, C. ; Zampognaro, F.
Author_Institution :
Dept. of Electron. Eng., Univ. of Rome Tor Vergata, Rome, Italy
Abstract :
DVB-RCS links, as well as most of VSAT systems, to improve TCP performance usually consider a PEP solution. The SatLabs group of the European Space Agency issued I-PEP, selecting SCPS-TP as transport protocol, which supports two congestion control schemes: TCP Vegas (default) and van Jacobson´s Slow Start and Congestion Avoidance. In both cases the most popular TCP-based applications, i.e. Web browsing and e-mail, achieve very poor performance especially when DAMA schemes run at the MAC layer. In this frame, TCP Noordwijk has been specifically designed to optimize performance of short TCP- based data transfers over DVB-RCS DAMA links, meeting the requirement to be compatible with I-PEP specifications. This paper presents an overview of TCP-based application criticalities over DVB-RCS links and shows how TCP Noordwijk improves performance.
Keywords :
digital video broadcasting; satellite ground stations; telecommunication congestion control; telecommunication links; transport protocols; DVB-RCS links; European Space Agency; I-PEP; MAC layer; PEP solution; SCPS-TP; SatLabs group; TCP Noordwijk; TCP Vegas; TCP-based applications; VSAT systems; Web browsing; congestion control schemes; e-mail; transport control protocol; transport protocol; van Jacobson´s Slow Start and Congestion Avoidance; Communications Society; Design optimization; Digital video broadcasting; Electronic mail; Jacobian matrices; Propagation delay; Proportional control; Satellites; Sociotechnical systems; Transport protocols;
Conference_Titel :
Communications, 2009. ICC '09. IEEE International Conference on
Conference_Location :
Dresden
Print_ISBN :
978-1-4244-3435-0
Electronic_ISBN :
1938-1883
DOI :
10.1109/ICC.2009.5199077
