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IEICE TRANSACTIONS on Communications

Performance Analysis of Fairness Issue of Wireless and Wired TCP Connections

Takahiro MATSUDA, Miki YAMAMOTO

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Summary :

TCP/IP is a key technology in the next generation mobile communication networks. A significant amount of wireless traffic will be carried in the Internet, and wireless connections will have to share network resources with wired connections. However, in a wireless network environment, TCP suffers significant throughput degradation due to the lossy characteristic of a wireless link. Therefore, to design the next generation mobile networks, it is necessary to know how much the wireless connection suffers from the degradation in comparison to the wired connection. In this paper, we discuss the fairness issue between TCP connections over wireless and wired links, and theoretically analyze the fairness of throughput between TCP over wireless link with ARQ (Automatic Repeat reQuest)-based link layer error recovery and TCP over error-free wired link. We validate our analysis by comparing the numerical results obtained from the analysis with the results obtained from computer simulation. The numerical results show that the fairness is sensitive to network propagation delay and variation rapidity of wireless link characteristic. We also obtain the theoretical lower bound of fairness.

Publication
IEICE TRANSACTIONS on Communications Vol.E86-B No.4 pp.1356-1363
Publication Date
2003/04/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Internet

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