基于拥塞反馈的Semi-TCP优化方法
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摘要
Semi-TCP根据无线多跳网络的特性,利用跨层设计的思想,端到端的拥塞控制调整为节点之间逐跳的拥塞控制,将传输层的拥塞控制下移到MAC层,形成递归逐跳的拥塞控制,旨在提高拥塞控制的效率和拥塞处理的即时性。现有的算法要通过增加或修改MAC控制帧的方式来实现拥塞的控制,因而需要对节点已安装的MAC层协议做适当的修改。文中提出了一种基于拥塞反馈的优化方法,不需要对传统TCP协议进行太多的修改。在EXata平台上进行了仿真,证明了该优化方法的有效性。
According to the characteristics of wireless multi hop network,Semi-TCP adopts the idea of cross layer design. The end to end congestion control is adjusted to hop by hop congestion control between nodes. The congestion control of the transmission layer is moved down to the MAC layer to form a recursive hop by hop congestion control,which aims to improve the efficiency and the immediacy of congestion control. The existing algorithms can achieve congestion control by adding or modifying the MAC control frame,so it is necessary to make appropriate modifications to the MAC layer protocol installed by the node. In this paper,a congestion feedback based optimization method is proposed,which does not require too much modification to the traditional TCP protocol. Simulation is carried out on the EXata platform,which proves effectiveness of the optimization method.
According to the characteristics of wireless multi hop network,Semi-TCP adopts the idea of cross layer design. The end to end congestion control is adjusted to hop by hop congestion control between nodes. The congestion control of the transmission layer is moved down to the MAC layer to form a recursive hop by hop congestion control,which aims to improve the efficiency and the immediacy of congestion control. The existing algorithms can achieve congestion control by adding or modifying the MAC control frame,so it is necessary to make appropriate modifications to the MAC layer protocol installed by the node. In this paper,a congestion feedback based optimization method is proposed,which does not require too much modification to the traditional TCP protocol. Simulation is carried out on the EXata platform,which proves effectiveness of the optimization method.
引文
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[16]钟友军,余新胜,张庆松.万兆网络中拥塞控制和排队调度实现与优化[J].电子设计工程,2017,25(24):82-87.
[17]李洋,张立武,李志强,等.一种基于往返时间和干扰抑制的拥塞控制研究[J].计算机应用与软件,2017,34(10):205-208.
[2] JIANG S. A Possible Development of Marine Internet:A Large Scale Heterogeneous Wireless Network[C]. The Int. Conf. Next Generation Wired/Wireless Networking NEW2AN, Saint-Petersburg,Russia,2015.
[3]JIANG S. Fostering Marine Internet with Advanced Maritime Radio System Using Spectrums of Cellular Networks[C]. IEEE ICCS,Shenzhen,China,2016.
[4]AFANASYEV A,TILLEY N,REIHER P,et al. Host-to-host Congestion Control for TCP[J]. IEEE Communications Surveys&Tutorials,2010,12(3):304-342.
[5]HANBALI A,ALTMAN E,NAIN P. A Survey of TCP over Ad Hoc Networks[J]. IEEE Communications Surveys&Tutorials,2005,7(3):23-36.
[6]SARDAR B,SAHA D. Survey of TCP Enhancements for Last-hop Wireless Networks[J]. IEEE Communications Surveys and Tutorials,2006,8(3):20-34.
[7]熊晨霖. Semi-TCP在海洋互联网中的应用仿真研究[D].广州:华南理工大学,2016.
[8]刘梅,姜胜明,陆以勤.无线多跳网络中Semi-TCP协议的实现[J].计算机工程,2012(9):79-82.
[9]WANG X,PERKINS D. Cross-Layer Hop-by-Hop Congestion Control in Mobile Ad-hoc Networks[C]. Wireless Communications and Networking Conference. USA:IEEE,2008:2456-2461.
[10] BASARAN C,KANGK D,SUZER MH. Hop-by-hop congestion control and load balancing in wireless sensor networks[J]. 2010:448-455.
[11]JIANG S,ZUO Q,WEI G. Decoupling congestion control from TCP for multi-hop wireless networks:Semi-TCP[J]. 2005(12):77.
[12]周亮,姜胜明,熊晨霖.面向船舶自组网的Semi-TCP研究[J].计算机工程,2018,44(2):119-123.
[13]刘杰,姜胜明,杨恺健. Semi-TCP协议在ARM开发板RP4412下的实现方法[J].现代计算机:专业版,2017(11):65-69.
[14]SZUTS TOBI A,FADEYEV V,KACHIGUINE S,et al. A wireless multi-channel neural amplifier for freely moving animals[J].Nature Neuroscience,2011,14(2):263.
[15]ZHOU L,JIANG S,XIONG C. Studying Semi-TCP and Its Application in Marine Internet[J]. Future Internet,2018,10(6):44.
[16]钟友军,余新胜,张庆松.万兆网络中拥塞控制和排队调度实现与优化[J].电子设计工程,2017,25(24):82-87.
[17]李洋,张立武,李志强,等.一种基于往返时间和干扰抑制的拥塞控制研究[J].计算机应用与软件,2017,34(10):205-208.