Journal ArticleDOI
TCP performance issues over wireless links
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TLDR
The problems arising when the TCP/IP protocol suite is used to provide Internet connectivity over existing and emerging wireless links are discussed, including degraded TCP performance due to mistaking wireless errors for congestion.Abstract:
This article discusses the problems arising when the TCP/IP protocol suite is used to provide Internet connectivity over existing and emerging wireless links. Due to the strong drive toward wireless Internet access through mobile terminals, these problems must be carefully studied in order to build improved systems. We review wireless link characteristics using wireless LANs and cellular communications systems as examples. We then outline the performance problems of the TCP/IP protocol suite when employed over those links, such as degraded TCP performance due to mistaking wireless errors for congestion. We present various proposals for solving these problems and examine their benefits and limitations. Finally, we consider the future evolution of wireless systems and the challenges that emerging systems will impose on the Internet protocol suite.read more
Citations
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TCP Hybla: a TCP enhancement for heterogeneous networks
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Proceedings ArticleDOI
Design methodology and evaluation of rate adaptation based congestion control for Vehicle Safety Communications
TL;DR: A design methodology for congestion control in VSC as well as the description and evaluation of a resulting rate adaption oriented protocol named PULSAR, showing that “details matter” with respect to the temporal and spatial dimensions of the protocol outcome.
Proceedings ArticleDOI
On the performance characteristics of WLANs: revisited
TL;DR: A fresh look at IEEE 802.11 WLANs is taken, using a combination of experiment, simulation, and analysis to demonstrate its surprisingly agile performance traits, and highlights subtle inter-layer dependencies including the mitigating influence of TCP-over-WLAN on dynamic rate shifting.
References
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TCP Slow Start, Congestion Avoidance, Fast Retransmit, and Fast Recovery Algorithms
TL;DR: The purpose of this document is to document four intertwined algorithms that have never been fully documented as Internet standards: slow start, congestion avoidance, fast retransmit, and fast recovery.
Journal ArticleDOI
Improving the performance of reliable transport protocols in mobile computing environments
Ramón Cáceres,Liviu Iftode +1 more
TL;DR: This work shows how current TCP implementations introduce unacceptably long pauses in communication during cellular handoffs, and proposes an end-to-end fast retransmission scheme that can reduce these pauses to levels more suitable for human interaction.
Journal ArticleDOI
M-TCP: TCP for mobile cellular networks
Kevin Brown,Suresh Singh +1 more
TL;DR: It is shown that M-TCP has two significant advantages over other solutions: (1) it maintains end-to-end TCP semantics and, (2) it delivers excellent performance for environments where the mobile encounters periods of disconnection.
Journal ArticleDOI
The Eifel algorithm: making TCP robust against spurious retransmissions
Reiner Ludwig,Randy H. Katz +1 more
TL;DR: The Eifel algorithm finally makes TCP truly wireless-capable without the need for proxies between the end points and reduces the penalty of a spurious timeout to a single (in the common case) spurious retransmission.
Proceedings ArticleDOI
A comparison of mechanisms for improving TCP performance over wireless links
TL;DR: The results show that a reliable link-layer protocol with some knowledge of TCP provides very good performance and it is possible to achieve good performance without splitting the end-to-end connection at the base station.