 |
Mark Allman, Chris Hayes, Hans Kruse, Shawn Ostermann. TCP Performance Over Satellite Links. Proceedings of the Fifth International Conference on Telecommunications Systems, Nashville, TN, March, 1997.
PS | PDF
Abstract:
Over the past few years, we have reported on the performance issues faced
by TCP/IP based applications on satellite links. Performance is limited by
the delay inherent in geosynchronous systems and the probability of bit
errors found in any wireless system, including satellite systems.
These limitations are becoming more important as new satellite systems
offer much higher data transmission rates than those available in the past.
While high efficiency on fast satellite links may eventually require
new protocol modifications, our previous studies indicate that full
link utilization may be achievable using the TCP performance
enhancements that have already been approved or that are currently in
the standards process. Of particular interest in the satellite
environment are performance enhancements for scaled windows and
timestamps (RFC 1323), fast retransmit and recovery (RFC 2001), and
selective acknowledgement (RFC 2018). The paper describes each of
these performance enhancements and explains how they can increase
TCP's performance over satellite links.
We present the results of a comprehensive performance study of these
TCP protocol enhancements in the satellite environment over error free
links. We show results over networks both with and without congestion
loss. Finally, we examine TCP's performance on realistic satellite
links with a non-zero probability of bit errors, where the
effectiveness of selective acknowledgments is examined and compared to
the performance of traditional TCP implementations.
BibTeX:
@inproceedings{AHKO97,
author = "Mark Allman and Chris Hayes and Hans Kruse and Shawn Ostermann",
title = "{TCP Performance Over Satellite Links}",
booktitle = "Proceedings of the 5th International Conference on Telecommunication Systems",
year = 1997,
pages = "456--469",
month = mar,
}
|
|