A Study on the High Performance TCP over Various Communication Links


The KIPS Transactions:PartC, Vol. 9, No. 2, pp. 197-212, Apr. 2002
10.3745/KIPSTC.2002.9.2.197,   PDF Download:

Abstract

Transmission Control Protocol (TCP) [1] has been tuned as a reliable transfer protocol for traditional networks comprising wired links and stationary hosts with same link characteristics. TCP assumes that congestion in the network be a primary cause for packet losses and unusual delays. TCP performs well over such networks adapting to end-to-end delays and congestion losses, by standard congestion control mechanisms, such as slow-start, congestion avoidance, fast retransmit and recovery. However, networks with wireless and other lossy links suffer from significant losses due to bit errors and handoffs. An asymmetry network such as ADSL has different bandwidth for both directions. As a result, TCP''s standard mechanisms incur end-to-end performance degradation in various links. In this paper, we analyze the TCP problems in wireless, satellite, and asymmetry links, and measure the new TCP mechanisms that are recommended by IETF Performance Implications of Link Characteristics (PILC) WG [2], by using Network Simulator 2 (NS-2).


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Cite this article
[IEEE Style]
S. M. Kim, S. W. Choi, S. Y. Han, "A Study on the High Performance TCP over Various Communication Links," The KIPS Transactions:PartC, vol. 9, no. 2, pp. 197-212, 2002. DOI: 10.3745/KIPSTC.2002.9.2.197.

[ACM Style]
Sang Mi Kim, Sun Wan Choi, and Sun Yung Han. 2002. A Study on the High Performance TCP over Various Communication Links. The KIPS Transactions:PartC, 9, 2, (2002), 197-212. DOI: 10.3745/KIPSTC.2002.9.2.197.