Analysis and Performance Evaluation of a Burst-Based TCP for Satellite DVB RCS Links

被引:41
|
作者
Roseti, Cesare [1 ]
Luglio, Michele [1 ]
Zampognaro, Francesco [1 ]
机构
[1] Univ Roma Tor Vergata, Dept Elect Engn, I-00133 Rome, Italy
关键词
Demand Assignment Multiple Access (DAMA); Digital Video Broadcasting-Return Channel over Satellite (DVB-RCS); Interoperable-Performance Enhancing Proxy (I-PEP); Transmission Control Protocol (TCP);
D O I
10.1109/TNET.2009.2033272
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
ESA Satlabs proposed a splitting architecture, named Interoperable-Performance Enhancing Proxy (I-PEP), which defines a protocol stack for the edges of a Digital Video Broadcasting-Return Channal over Satellite (DVB-RCS) link with the aim of improving performance of Transmission Control Protocol (TCP)-based applications. At the transport layer of I-PEPs, the Space Communications Protocols Standards-Transport Protocol (SCPS-TP) provides a reliable connection to upper layers, although resulting in very poor performance in tests. In fact, standard congestion-control mechanisms underperform mainly due to long latency and Demand Assignment Multiple Access (DAMA) access schemes, especially in the case of short transfers, as for Web traffic, when optimum window may not be reached. In this paper, a burst-based TCP, named TCP Noordwijk (TCPN), is introduced to improve on these aspects. To evaluate performance, the protocol has been implemented on the Network Simulator NS-2. Definitively, details on the protocol design, implementation, and a vast gamut of results coming from simulations are reported.
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页码:911 / 921
页数:11
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