Performance analysis of snoop TCP with freezing agent over cdma2000 networks

Authors:
Sang Hee Lee;Hong Gu Ahn;Jae Sung Lim;Seung Hwan Kwak;Sung Kim
Affiliations:
The Graduate School of Information and Communication, Ajou University, Suwon, Korea;The Graduate School of Information and Communication, Ajou University, Suwon, Korea;The Graduate School of Information and Communication, Ajou University, Suwon, Korea;Network RD center, SK Telecom, Seoul, Korea;Network RD center, SK Telecom, Seoul, Korea
Venue:
CIC'02 Proceedings of the 7th CDMA international conference on Mobile communications
Year:
2002

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Abstract

The standard TCP which is originally devised to perform congestion control mechanism does not work well in wireless networks since the wireless links produce significant non-congestion related packet losses due to fading and handoff. In this paper, to improve the TCP performance over cdma 2000 wireless networks, we propose an architecture with a wireless TCP server and a wireless TCP mechanism that applies a freezing with Snoop protocol. Through computer simulations carried by NS-2 network simulator, it is shown that the snoop function yields significant improvement under the proposed system architecture and the freezing mechanism prevents timeout which causes an unnecessary congestion control.