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无线传感器网络拥塞控制机制研究

Research on Congestion Control Mechanism for Wireless Sensor Networks
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摘要 本论文在分析无线传感器网络不同于普通有线网络的特征后,提出了一种适用于无线传感器网络的TCP拥塞控制机制DW-TCP,此机制将TCP拥塞窗口分为拥塞丢包窗口和误码丢包窗口,在链路误码率较高时通过降低发送速率提高数据发送的可靠性,节约无线节点的能源消耗和系统不必要的开销,该机制不但考虑到拥塞丢包对数据发送速率的影响,而且考虑到无线链路中的误码丢包对数据发送速率的影响。 Comparing to wire networks, there are many different characteristics in wireless sensor networks. So, we present an improved TCP congestion control mechanism DW - TCP, it divides the TCP congestion window into two parts： dispose congestion window and dispose error - code window. It decreased the sending rate in bad conditions, which may lead to higher reliability, unnecessary energy consumption of wireless nodes, and less system overheads. The improved mechanism considers the influences to the packet sending rate not only by the congestion but also by the corruption.
作者 任劼
机构地区 西安工程大学电子信息学院
出处 《无线通信技术》 2009年第3期43-47,共5页 Wireless Communication Technology
关键词 传感器网络 拥塞控制 拥塞丢包窗口 误码丢包窗口 wireless sensor network congestion control dc -wnd de - wnd
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献6

  • 1Dunkels A, Voigt T, Alonso J. Making TCP/IP viable for wireless sensor networks[A]. In: Proc of EWSN04[C], Berlin, Germany, January 2004 (http://www. sics. se/ - adam/ewsn2004, pdf).
  • 2G. Holland and N. Vaidya. Analysis of TCP performance over mobile adhoc networks [ J ]. ACM Wireless Networks, vol. 8, no. 2, Mar. 2002 : 275- 288.
  • 3E. Altman and T. Jim'enez. Novel delayed ACK techniques for improving TCP performance in multihop wire- less networks[ A]. in Proc of the Personal Wireless Communications[C] ,Venice, Italy, Sep. 2003 : 237-253.
  • 4Allman M. , Pay, son V. , Stevens W.. TCP Congestion Control[Z]. In: RFC2581, April 1999.
  • 5Floyd S.. A report on some recent developments in TCP congestion control [ J ]. In : IEEE Communication Magazine, 2001,39(4) : pp. 84-90.
  • 6徐昌彪,隆克平,杨士中.无线网络中基于误码丢包的TCP速率调节策略[J].计算机学报,2002,25(4):438-444. 被引量：14

二级参考文献13

  • 1[1]Stevens W R. TCP/IP Illustrated, Volume 1: The Protocols. Reading, MA: Addison Wesley, 1994
  • 2[2]Allman M, Paxson V, Stevens W. TCP Congestion Control. RFC2581, April 1999
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  • 9[9]Biaz S et al. TCP over wireless networks using multiple acknowledgments. Texas A&M University: Technical Report 97-001, 1997
  • 10[10]Biaz S, Vaidya N. Performance of TCP congestion predictors as loss predictors. Texas A&M University: Technical Report 98-007, 1998

共引文献13

无线通信技术
2009年 第3期

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