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Please use this identifier to cite or link to this item: http://ir.ncue.edu.tw/ir/handle/987654321/10139

Title: TCP-Ho: A Congestion Control Algorithm with Design and Performance Evaluation
Authors: Ho, Cheng-Yuan;Chan, Yi-Cheng;Chen, Yaw-Chung
Contributors: 資訊工程學系
Keywords: Congestion control;TCP;Slow start;Congestion avoidance;Transport protocol
Date: 2007-03
Issue Date: 2012-05-04T08:27:48Z
Publisher: Oxford University Press
Abstract: A critical design issue of Transmission Control Protocol (TCP) is its congestion control that allows the protocol to adjust the end-to-end communication rate based on the detection of packet loss. However, TCP congestion control may function poorly during its slow start and congestion avoidance phases. This is because TCP sends bursts of packets with the fast window increase and the ACK-clock based transmission in slow start, and respond slowly with large congestion windows especially in high bandwidth-delay product (BDP) networks during congestion avoidance. In this article, we propose an improved version of TCP, TCP-Ho, that uses an efficient congestion window control algorithm for a TCP source. According to the estimated available bandwidth and measured round-trip times (RTTs), the proposed algorithm adjusts the congestion window size with a rate between exponential growth and linear growth intelligently. Our extensive simulation results show that TCP-Ho significantly improves the performance of connections as well as remaining fair and stable when the BDP increases. Furthermore, it is feasible to implement because only sending part needs to be modified.
Relation: IEICE Transactions on Communications, E90-B(3): 516-526
Appears in Collections:[Department and Graduate Institute of Computer Science and Information Engineering] Periodical Articles

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