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The impact of delayed acknowledgments on TCP performance over satellite links

Tanja Lang, Daniel Floreani
2001 Proceedings of the first workshop on Wireless mobile internet - WMI '01  
The performance of the Transmission Control Protocol (TCP) over network paths that include a wireless or a satellite link is a very active area of research.  ...  In this paper we will show that this acknowledgment strategy can have a significant impact on the performance of TCP and should not be neglected when evaluating new solutions for wireless environments.  ...  CONCLUSION In this paper we evaluated the effects that the delayed acknowledgment strategy, implemented by many receivers in the Internet, has on the performance of TCP over a satellite link.  ... 
doi:10.1145/381472.381573 dblp:conf/wmi/LangF01 fatcat:iilmbbxenvfcfnqijnxx47ehym

Impact of Delayed Acknowledgments on Transport Layer Performance over Low Orbit Constellations

Bastien Tauran, Emmanuel Lochin, Jérôme Lacan, Fabrice Arnal, Mathieu Gineste, Nicolas Kuhn
2019 Journal of Spacecraft and Rockets  
By default, the TCP enables delayed acknowledgment (DelAck) that might increase the end-to-end delay when performing over satellite link-layer recovery schemes.  ...  This motivates the present paper, which aims to quantify the impact of such a TCP option in the context of low Earth orbit satellite constellations.  ...  Chen et al. [10] studied the impact of DelAck on a TCP over wireless links and showed that their impact on TCP performance depended on 1) the topology used, and 2) the path length.  ... 
doi:10.2514/1.a34190 fatcat:azuccffd4raxlikbzw6jsf6f6i

Making H-ARQ Suitable for a Mobile TCP Receiver over LEO Satellite Constellations [chapter]

Bastien Tauran, Emmanuel Lochin, Jérôme Lacan, Fabrice Arnal, Mathieu Gineste, Laurence Clarac, Nicolas Kuhn
2018 Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering  
the duplicate acknowledgments of TCP.  ...  Following temporal traces representing the delay between a mobile terminal and the last hop satellite from a LEO constellation, we assess how HARQ mechanisms impact on the RTO based retransmission and  ...  We also evaluate the impact of Delayed Acknowledgment (DelAck) on our proposed solution.  ... 
doi:10.1007/978-3-319-76571-6_4 fatcat:4vys2k7hwfgstaoaartdqvmjky

Evaluating TCP Mechanisms for Real-Time Streaming over Satellite Links [chapter]

Panagiotis Papadimitriou, Vassilis Tsaoussidis
2006 Lecture Notes in Computer Science  
Furthermore, we study the supportive role of Selective Acknowledgments (SACK). Along with protocol performance, we also evaluate the impact of delayed acknowledgments.  ...  In this context, we quantify the effects of satellite links on TCP efficiency and streaming video delivery.  ...  Furthermore, we assess the impact of delayed ACKs and link asymmetry on TCP performance, as well as the associated impact of diverse link error rates.  ... 
doi:10.1007/11750390_6 fatcat:xqk3cpduwjfhdizsjaj56jqc7u

TCP over satellite...the final frontier

C. Metz
1999 IEEE Internet Computing  
Several issues arise when TCP slowstart and congestion avoidance are deployed over a satellite link. First is the negative impact of slow-start on performance for transmission of small files.  ...  The IETF TCP over Satellite Working Group was chartered in 1997 to better understand and document the issues related to TCP performance over satellite links.  ... 
doi:10.1109/4236.747326 fatcat:douuauoccrhnhhqteztsqapxgi

On TCP performance over asymmetric satellite links with real-time constraints

Panagiotis Papadimitriou, Vassilis Tsaoussidis
2007 Computer Communications  
In this context, we formulate an analytical model in order to quantify the impact of satellite systems and link asymmetry on TCP performance and real-time delivery.  ...  Since TCP performance is in part throttled by the rate of arriving ACKs, we additionally investigate the impact of delayed ACKs.  ...  An overview of related work and TCP performance issues TCP's efficiency for real-time delivery over satellite links has not been studied in depth.  ... 
doi:10.1016/j.comcom.2006.12.030 fatcat:uab7josyqnatdowcovgn3oncim

Satellite-TCP: A Flow Control Algorithm for Satellite Network

K. Sindhu Raj, B. Thanudas, N. Radhika, V. S. Smitha
2015 Indian Journal of Science and Technology  
TCP was designed to be flexible and robust but it cannot perform efficiently over the satellite links with long delay.  ...  The proposed Flow Control Algorithm called Satellite-TCP is based on controlling the flow of Negative Acknowledgement packets (NACK), according to the level of congestion at the network.  ...  Satellite link characteristics, namely long propagation delays, large bandwidth-delay products, and high bit error rates, have serious impact on the performance of satellite network.  ... 
doi:10.17485/ijst/2015/v8i17/65032 fatcat:mrsb2ho6n5eavhvwaik7bi5ds4

TCP/IP performance over satellite links

C. Partridge, T.J. Shepard
1997 IEEE Network  
Achieving high data rates using TCP liP over satellite networks can be difficult. This article explains some of the reasons TCP liP has difficulty with satellite links.  ...  While a student at MIT, he studied the performance behavior of TCP implementations, which led to the development of a graphical method of TCP packet trace analysis.  ...  Ilof TCP/IP impact performance. We then pre-'sent issues specific to satellites aninformal) about how well TCP/IP performs over satellite links. Some reports indicate TCP/IP throughput is poor.  ... 
doi:10.1109/65.620521 fatcat:m7nndb5qvzcsjogfknxf5xx5ja

Internet service via broadband satellite networks

Norman P. Butts, Vijay G. Bharadwaj, John S. Baras, Andrew G. Tescher, Bhaskaran Vasudev, V. Michael Bove, Jr., Barbara Derryberry
1999 Multimedia Systems and Applications  
However, using satellite links to supply high bandwidth has been difficult due to problems with inefficient performance of the Internet's TCP/IP protocol suite over satellite.  ...  We describe an architecture for improving the performance of TCP/IP protocols over heterogeneous network environments, especially networks containing satellite links.  ...  Acknowledgments The authors would like to thank Rohit Tripathi and Koroush Saraf for their invaluable assistance in carrying out the performance tests described in Section 4.  ... 
doi:10.1117/12.337407 fatcat:ntyc2gl7oreorbdz4kfuzcjjxm

Experimental performance of DCCP over live satellite and long range wireless links

Golam Sawar, Emmanuel Lochin, Roksana Boreli
2007 2007 International Symposium on Communications and Information Technologies  
We present experimental results for the performance over satellite and long range wireless (WiMax) links of the new TCP-Friendly Rate Control (TFRC) congestion control mechanism from the Datagram Congestion  ...  We analyse the links and identify the potential causes, i.e. long and variable delay and link errors.  ...  The authors would like to thank Sebastien Ardon and Guillaume Jourjon for the discussion about the DCCP improvements and Ian McDonald for use of his DCCP implementation.  ... 
doi:10.1109/iscit.2007.4392105 fatcat:4mkmz2j5ereefhtfa34hpoqggu

Effects on TCP of routing strategies in satellite constellations

L. Wood, G. Pavlou, B. Evans
2001 IEEE Communications Magazine  
This article introduces the types of satellite constellation networks, and examines how overall performance of TCP communications carried across such a network can be affected by the choice of routing  ...  This allows more general routing strategies than shortestpath routing, but we show these strategies to be detrimental to the performance of individual TCP connections.  ...  ACKNOWLEDGMENTS We thank the maintainers of and contributors to the network simulator ns, used in our simulations, for its ongoing development.  ... 
doi:10.1109/35.910605 fatcat:hgpcveyb5fbfdgqweuulsot7ry

Mobile internet access using satellite networks

P. Loreti, M. Luglio, R. Kapoor, J. Stepanek, M. Gerla, F. Vatalaro, M. A. Vazquez-Castro
2004 International Journal of Satellite Communications And Networking  
Using these tools, we analyse various Internet applications and the performance of various TCP schemes in different topologies.  ...  Satellites offer a promising alternative for mobile access to the Internet by both pedestrians, and more importantly, from vehicles.  ...  The high BER has a critical impact on TCP performance. TCP was originally designed for extremely low BER (of the order of 10 À10 ; or less).  ... 
doi:10.1002/sat.779 fatcat:xtbpukv7rvb2pm4mqsio4swvsy

Evaluation of SCTP for space networks

Shaojian Fu, M. Atiquzzaman, W. Ivancic
2005 IEEE wireless communications  
The performance impact of some of these unique SCTP features on data communication over satellite networks will be evaluated by simulation in detail later.  ...  Such issues require further research to improve the performance of SCTP over satellite links.  ... 
doi:10.1109/mwc.2005.1522105 fatcat:w2eybr4yxbggfpfsvttp2qxzii

On-Board Satellite "Split TCP" Proxy

M. Luglio, M.Y. Sanadidi, M. Gerla, J. Stepanek
2004 IEEE Journal on Selected Areas in Communications  
Unfortunately, when used with satellite links, TCP suffers from a number of well-known performance problems, especially for higher data rates and high altitude satellites with longer delays.  ...  We focus upon the efficient use of buffer resources on board the satellite, while at the same time enhancing TCP performance. We evaluate two TCP protocol versions, TCP NewReno and TCP Westwood.  ...  Large Delays The large propagation delay characteristic of satellites can severely impact TCP performance in several ways.  ... 
doi:10.1109/jsac.2003.819987 fatcat:zlxc7a4hkzguxnqy7e2iodge44

Transport challenges facing a next-generation hybrid satellite Internet

Gorry Fairhurst, Arjuna Sathiaseelan, Haitham Cruickshank, Cedric Baudoin
2011 International Journal of Satellite Communications And Networking  
A history of TCP protocol evolution from a satellite perspective is followed by focussing on the role of protocol-enhancing proxies in satellite systems and how these have impacted the introduction of  ...  Current transport research issues are identified and related to two new architectural approaches to highlight the expected performance benefits and derive the implications on the design of geostationary  ...  ACKNOWLEDGEMENTS This work has been funded by the Satellite Network of Excellence (JA2130).  ... 
doi:10.1002/sat.974 fatcat:aeqpzv52vve2dahbev5y5v3lku
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