EIMD: a new congestion control for fast long-distance networks

Authors:
Eunho Yang;Seong-il Ham;Seongho Cho;Chong-kwon Kim;Pillwoo Lee
Affiliations:
School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Republic of Korea;School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Republic of Korea;School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Republic of Korea;School of Electrical Engineering and Computer Science, Seoul National University, Seoul, Republic of Korea;Korea Institute of Science and Technology Information, Supercomputing Center, Taejon, Republic of Korea
Venue:
ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
Year:
2006

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Abstract

In fast long-distance networks, TCP fails to fully utilize the bandwidth due to its congestion control mechanism A plethora of congestion control schemes that may enhance the performance of the transport protocol in fast long-distance networks have been proposed The proposed schemes aim to satisfy three requirements of congestion control schemes: bandwidth scalability, TCP friendliness, and RTT fairness However, due to the trade-off among these requirements, it is difficult to satisfy all the requirements simultaneously In this paper, we propose a new window-based congestion control scheme called EIMD (Exponential Increase/Multiplicative Decrease) that increases congestion window size exponentially to quickly grap the unutilized bandwidth We evaluate the performance of EIMD via computer simulations The simulation results show that EIMD satisfies the three requirements In addition, EIMD converges fast to the fair-share points.