Presentation 2002/10/4
On TCP Performance over Multi-Hops Satellite Constellations
Tarik TALEB, Nei KATO, Yoshiaki NEMOTO,
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Abstract(in English) TCP is the most widely used transport protocol on today's Internet. A large part of its success is due to its ability to probe for unused bandwidth while also backing off its transmission rate upon detection of network congestion. Despite the fact that several mechanisms have been presented in recent literature to improve TCP, there remain some vexing attributes that impair TCP's performance. In this paper, we address the issue of the efficiency and fairness of TCP in multi-hops satellite constellations. We mainly focus on the effect of the change in flow count on TCP behavior. In case of handover occurrence, a TCP sender may be forced to share a new set of satellites with other users resulting in a change of flow count. Our work argues that the TCP rate of each flow should be dynamically adjusted to the available bandwidth when the number of flows, competing for a single link, changes over time. We show through simulations that our fair share scheme improves fairness by guaranteeing a fair progression in window size for each flow, decreases the number of losses, and makes better utilization of the bottleneck link.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) TCP Congestion-Control / Fairness / Rate-Adjustments / Flow Counts / Satellite Networks.
Paper # SAT2002-75
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Conference Information
Committee SAT
Conference Date 2002/10/4(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) On TCP Performance over Multi-Hops Satellite Constellations
Sub Title (in English)
Keyword(1) TCP Congestion-Control
Keyword(2) Fairness
Keyword(3) Rate-Adjustments
Keyword(4) Flow Counts
Keyword(5) Satellite Networks.
1st Author's Name Tarik TALEB
1st Author's Affiliation Graduate School of Information Sciences, TOHOKU University.()
2nd Author's Name Nei KATO
2nd Author's Affiliation Graduate School of Information Sciences, TOHOKU University.
3rd Author's Name Yoshiaki NEMOTO
3rd Author's Affiliation Graduate School of Information Sciences, TOHOKU University.
Date 2002/10/4
Paper # SAT2002-75
Volume (vol) vol.102
Number (no) 360
Page pp.pp.-
#Pages 6
Date of Issue