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2011•Jisuanji gongchengRequires access

Improved Algorithm of TCP Congestion Control

Xie Hua

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Abstract

TCP Reno congestion control mechanism based on the algorithm of Additive Increase Multiplicative Decrease(AIMD) is mainly used in the Internet in the present.Aiming at the drawback of this algorithm in dealing with the detection of available bandwidth utilization rate due to AIMD factors too arbitrary,traditional AIMD algorithm is researched and a smooth channel capacity detection algorithm based on the growth of a congestion window is proposed,its throughput,fairness and friendliness are evaluated by NS simulation.Simulation results show that the throughput of modification algorithm of TCP outperforms TCP Reno by 10%.

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What this paper is about

TCP Reno congestion control mechanism based on the algorithm of Additive Increase Multiplicative Decrease(AIMD) is mainly used in the Internet in the present.Aiming at the drawback of this algorithm in dealing with the detection of available bandwidth utilization rate due to AIMD factors too arbitrary,traditional AIMD algorithm is researched and a smooth channel capacity detection algorithm based on the growth of a congestion window is proposed,its throughput,fairness and friendliness are evaluated by NS simulation.Simulation results show that the throughput of modification algorithm of TCP outperforms TCP Reno by 10%.

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Available abstract

TCP Reno congestion control mechanism based on the algorithm of Additive Increase Multiplicative Decrease(AIMD) is mainly used in the Internet in the present.Aiming at the drawback of this algorithm in dealing with the detection of available bandwidth utilization rate due to AIMD factors too arbitrary,traditional AIMD algorithm is researched and a smooth channel capacity detection algorithm based on the growth of a congestion window is proposed,its throughput,fairness and friendliness are evaluated by NS simulation.Simulation results show that the throughput of modification algorithm of TCP outperforms TCP Reno by 10%.

Key concepts: Computer science, CUBIC TCP, Network congestion, TCP Westwood plus, TCP Friendly Rate Control, H-TCP, Algorithm, Throughput

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