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《Journal of South China University of Technology(Natural Science Edition)》 2007-01
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Enhanced TCP Vegas Protocol for Asymmetric Networks

Liu Jing Chen Fang-jiong Wei Gang (School of Electronic and Information Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China)  
It has been proved that the TCP Vegas protocol underutilizes the available bandwidth in asymmetric networks although it possesses better performance than the traditional TCP protocol.In order to solve this problem,an enhanced TCP Vegas algorithm is proposed.In this algorithm,the ecn_to_echo_bits in the acknowledge packets are first used to estimate the congestion probability in the backward path,proving that the change of Round-Trip-Time(RTT) is directly proportional to the change of congestion probability.Then,when backward congestion occurs,the change of RTT is estimated by monitoring the change of congestion probability.Thus,the actual RTT before the congestion is obtained,which is used to implement the TCP Vegas protocol.The simulations based on NS-2 show that the proposed algorithm is more applicable than the existing Vegas algorithm when the congestion occurs both in forward and backward paths.
【Fund】: 国家自然科学基金资助项目(60402014);; 广东省自然科学基金资助项目(31390)
【CateGory Index】: TP393.02
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【References】
Chinese Journal Full-text Database 1 Hits
1 HU Yu , CHEN Yuan-yan , WANG Bin , FENG Wei (College of Computer Science & Information Engineering, Guangxi Normal University, Guilin 541004);Improved Algorithm of TCP Vegas Based on Dynamic Estimation of Bandwidth[J];Modern Computer;2010-05
【Citations】
Chinese Journal Full-text Database 3 Hits
1 Song Li-hua~1 Wang Hai-tao~2 Chen Ming~1(1.Institute of Command Automation,PLA Univ.of Sci.and Tech.,Nanjing 210007,Jiangsu,China;2.Institute of Communication Engineering,PLA Univ.of Sci.and Tech.,Nanjing 210007,Jiangsu,China);Congestion Control Scheme Based on Network Measurement and Fuzzy Logic Control Technology[J];Journal of South China University of Technology(Natural Science Edition);2006-06
2 Xiang Shao-hua Xu Bu-gong Peng Da-zhou Wu Sai(School of Automation Science and Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China);Robust AQM Congestion Control Algorithm Based on Gain Adaptive Smith Predictor[J];Journal of South China University of Technology(Natural Science Edition);2006-09
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【Co-citations】
Chinese Journal Full-text Database 8 Hits
1 YAO Zong-xin1,2,LI Ming1,2,CHEN Zong-ji1 (1.Beijing University of Aeronautics and Astronautics,Beijing 100083,China;2.Shenyang Aircraft Design and Research Institute,Shenyang 110035,China);Mission Decision-making Method of Multi-aircraft Cooperative Attack Multi-object Based on Game Theory Model[J];Aeronautical Computing Technique;2007-03
2 Zhong Bo-cheng Han Jiang-hong(School of Computer and Information,Hefei Univ.of Tech.,Hefei 230009,Anhui,China);Network Flowrate Control Model Based on Game Theory[J];Journal of South China University of Technology(Natural Science Edition);2007-09
3 Lai Jun Ye Wu Feng Sui-li(School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China);An Improved Explicit Congestion Notification Algorithm[J];Journal of South China University of Technology(Natural Science Edition);2008-01
4 Lai Jun Ye Wu Feng Sui-li(School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China);Active Queue Management Algorithm Based on Congestion Forecast Threshold[J];Journal of South China University of Technology(Natural Science Edition);2008-09
5 Chen Rou-yi1 Zhang Yao1 Zhong Qing1 Cai Guang-lin2(1.School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China;2.Guangdong Electric Power Design Institute,Guangzhou 510663,Guangdong,China);Application of Decentralized H_∞ Controller to Damping Control of Power System[J];Journal of South China University of Technology(Natural Science Edition);2009-02
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7 HOU Ping1,2,WANG Zhi-quan1 1.Department of Automation,Nanjing University of Science & Technology,Nanjing 210094,China 2.Department of Business Administration,Nanjing College for Population Program Management,Nanjing 210042,China;New adaptive AQM algorithm in large delay network[J];Computer Engineering and Applications;2008-19
8 CHEN Xiao-long1,2 ZHANG Yun1 LIU Zhi 1 YANG Ling-ling1(School of Automation,Guangdong University of Technology,Guangzhou 510090,China)1(School of Computer &Electronics and Information,Maoming College,Maoming 525000,China)2;FAST TCP Preference Method Based on Invariant Manifolds[J];Computer Science;2010-08
【Co-references】
Chinese Journal Full-text Database 4 Hits
1 GU Ming, ZHANG Jun, SU Dong-lin(School of Electronics and Information Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China);An Adaptive Slow Start Algorithm of TCP Vegas for Large BDP Networks[J];Telecommunication Engineering;2007-02
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【Secondary Citations】
Chinese Journal Full-text Database 2 Hits
1 REN Feng-Yuan1+, LIN Chuang1, REN Yong2, SHAN Xiu-Ming 2 1(Department of Computer Science and Technology, Tsinghua University, Beijing 100084, China);Congestion Control Algorithm in Large-Delay Networks[J];Journal of Software;2003-03
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