NDLI: Improving efficiency-friendliness tradeoffs of TCP in wired-wireless combined networks

Content Provider	IEEE Xplore Digital Library
Author	Shimonishi, H. Sanadidi, M.Y. Gerla, M.
Copyright Year	2005
Description	Author affiliation: Syst. Platforms Res. Labs., NEC Corp., Japan (Shimonishi, H.)
Abstract	In this paper, we propose a new version of TCP to improve (1) efficiency in wired-wireless combined networks with nonnegligible random packet losses, and also (2) friendliness to existing protocols, such as TCP-Reno. TCP-Westwood (TCPW) was proposed to improve efficiency in such networks; however, it is shown to be unfriendly to existing protocols under certain RTT and/or router buffer capacities. Since friendliness to existing protocols is one of the most important issues in a real network environment where different protocols coexist, we propose TCPW-BBE (TCPW with buffer and bandwidth estimation) to ensure the friendliness even under varying effective buffer capacities. Based on buffer capacity estimation mechanism, TCPW-BBE reacts more appropriately to a packet loss event, whether the loss is due to congestion or link errors. Simulation results show that TCPW-BBE maintains friendliness to TCP-Reno in networks for a broad range of buffer capacities, RTT, with/without RED routers, yet retaining the efficiency of the original TCPW.
Starting Page	3548
Ending Page	3552
File Size	322439
Page Count	5
File Format	PDF
ISBN	0780389387
DOI	10.1109/ICC.2005.1495079
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-05-16
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Intelligent networks Protocols Bandwidth Internet Laboratories National electric code Computer science Maintenance Degradation Guidelines
Content Type	Text
Resource Type	Article

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