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《Journal of South China University of Technology(Natural Science Edition)》 2008-01
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An Improved Explicit Congestion Notification Algorithm

Lai Jun Ye Wu Feng Sui-li(School of Electronic and Information Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China)  
As the algorithm of explicit congestion notification(ECN) in RFC 3168 recommends the gateway to drop packets when the average queue length in the gateway buffer exceeds the upper queue threshold,the network throughput may be too low.In order to improve the system performance,this paper proposes an algorithm named Long-Queue Random Drop(LQRD).In the proposed algorithm,the gateway drops packets according to a drop probability function when the average queue length in the gateway buffer exceeds the upper queue threshold,thus limiting the continuous increase in queue length.The drop probability function synthetically considers the average queue length,the buffer size,the link capacity and the average queue delay.Simulated results show that the proposed algorithm ensures high throughput,short delay and robust connectivity for long queue length in the gateway buffer.The analytical model of the proposed algorithm is finally analyzed by using the nonlinearly differential equation.
【CateGory Index】: TP393.01
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【Citations】
Chinese Journal Full-text Database 2 Hits
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 YANG Xiao-ping~1,CHEN Hong~1,ZHAI Shuang~2(1.College of Communication Engineering,Jilin University,Changchun 130025,China;2.College of Computer Science and Engineering,Changchun University and Technology,Changchun 130012,China);Comparison of RED and Droptail Algorithms Based on Router[J];Journal of Changchun Post and Telecommunication Institute;2005-01
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1 ZENG Hui, JING Yuan-wei (College of Information Science and Engineering, Northeastern University, Shenyang 110004, China.;Congestion Control Based on Surplus Function Analysis of Multi-priority Networks[A];[C];2006
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【Secondary Citations】
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