期刊文献+

卫星网络中基于BaseRTT计算的TCP Vegas算法改进 被引量:5

Improvement on TCP Vegas Algorithm Based on BaseRTT Computation in Satellite Network
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摘要 传统的TCPVegas是一种基于测量的拥塞控制算法,并没有考虑通信节点移动的情况。针对卫星间距离变化对往返时延的影响较大,以及带宽分配的不公平性问题,提出一种基于最小往返时延计算的拥塞控制算法Vegas_Sat(Vegas over Satellite)。该算法根据卫星间的距离计算出最小往返时延,据此进行拥塞控制,提高了网络的资源利用率,改善了带宽分配的不公平性问题。最后,利用NS2的仿真软件验证了算法的有效性。 TCP Vegas is a measurement-based congestion control algorithm,it does not consider the communication node movement.To overcome the changes of delay due to the satellite movement,and the problem of malapportioned bandwidth,Vegas_Sat algorithm was proposed for the satellite network.The new algorithm calculated the Base_RTT using the distance between the communicate satellites to congestion control.The Vegas_Sat improved network resource utilization and the problem of malapportioned bandwidth.Finally,the validity of the new algorithm was verified by NS2 simulation software.
出处 《系统仿真学报》 CAS CSCD 北大核心 2012年第6期1254-1258,共5页 Journal of System Simulation
基金 国家863计划项目(2009AAXX) 辽宁省教育厅创新团队(2009T004)
关键词 拥塞控制 TCP VEGAS 卫星网络 最小往返时延 congestion control TCP Vegas satellite network BaseRTT
作者简介 潘成胜(1962-),男,江苏省无锡市人,博士,教授,博导,研究方向为卫星通信技术,计算机网络技术; 宣景朋(1984-),男,山东省菏泽市人,硕士生,研究方向为卫星网络; 魏德宾(1978-),男,辽宁大连人,硕士,讲师,研究方向为卫星通信 杨力(1982-),女,黑龙江佳木斯人,博士,讲师,研究方向为扩频通信,卫星通信,电子对抗。
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参考文献8

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共引文献5

同被引文献27

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  • 10闫小荣,黄晓燕,彭伟.基于模拟的DTN路由协议性能评估[J].计算机技术与发展,2010,20(12):1-4. 被引量:2

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