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Download fileOn the combined effects of Bit Error Rate and delay-distribution tail on TCP performance
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posted on 2006-06-05, 10:48 authored by Jose A. Hernandez Gutierrez, Iain PhillipsIain PhillipsThe original design of the TCP retransmission timeout was implemented ignoring the recent
measurement studies on the dynamics and features of network traffic and delay. Such studies have
reported the highly variable characteristics of network delay, considered to be heavy-tailed distributed.
Accordingly, depending on the heavy characteristics of the tail of the delay distribution, the actual
implementation of TCP's retransmission timeout might be too conservative, or rather insufficient.
This work aims to assess the optimal design of the retransmission timeout when heavy-tailed delay
profiles are present. In our experiments, we have considered the case of low-bit error rate scenarios
typical from wired networks as well as the high bit-error rates, typical from wireless networks. We show
that the current implementation of the retransmission timeout is in broad terms very conservative, except
in cases with extremely heavy tails.
History
School
- Science
Department
- Computer Science
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154530 bytesCitation
HERNANDEZ, J.-A. and PHILLIPS, I.W., 2005. On the combined effects of Bit Error Rate and delay-distribution tail on TCP performance. IN: Proceedings of the 1st Internet Technologies and Applications, Wrexham, September 2005Publication date
2005Notes
This is a conference paper.Language
- en