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无线网状网中自适应网络编码的MPTCP研究与设计 被引量：1

Study and Design of Adaptive Network Coding MPTCP in Wireless Mesh Networks
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摘要 网络编码可以提高无线网状网的吞吐量,但是它在无线网状网中的实际应用是一个挑战性的问题。网络编码必须和TCP很好相容才能得到广泛应用。根据无线网状网的特点,研究和设计了一种自适应网络编码的多路径TCP。在提出的方案中,网络编码被加入到现有的网络系统,源节点根据目的节点编码数据块的自由度,调整发送编码的数据块,以降低多路径传输的数据报文的失序,提高网络的吞吐量,保证各个数据流之间的公平性。仿真结果表明设计的MPTCP有效。 It is a challenge that network coding achieves wide use in wireless mesh networks. Network coding must be compatible or friendly with TCP in practice. We proposed a mechanism that naturally adds network coding to current network systems. In our scheme, according to destination feedback degree of freedom of encoding block, the source node modifies the coded data block and delays of packet delivery minimize reordering and timeouts. Using multipath routing, the source side can send more encode packets and the transmission rate becomes more faster, as a result, the network achieves higher throughput compared to TCP in the presence of lossy wireless links. Comprehensive simulations and results verify the validation of the theoretical results in the paper.
作者 夏卓群 陈志刚 赵明 刘佳琦
机构地区 中南大学信息科学与工程学院 长沙理工大学计算机与通信工程学院
出处 《计算机科学》 CSCD 北大核心 2010年第4期106-109,124,共5页 Computer Science
基金 国家自然科学基金项目(60873082) 总参预研基金(9140A15030308QT4801) 中国博士后科学基金项目(20090451108) 湖南省科技计划项目(2009RS3036) 长沙市科技计划项目(K09ZD055-13)资助
关键词 无线网状网 网络编码 多路径TCP 自由度 Wireless mesh networks, Network coding, Multipath TCP,Degree of freedom
分类号 TP311 [自动化与计算机技术—计算机软件与理论]
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参考文献15

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同被引文献16

  • 1Biswas S, Morris R. ExOR.. opportunistic multi-hop routing forwireless networks [A]//ACM SIGCOMM 2005 [C]. Philadel- phia, PA, USA, August 2005.
  • 2Chachulski S,jennings M, Katti S, et al. Trading Structure for Randomness in Wireless Opportunistic Routing [A] ff ACM SIGCOMM 2007 [C]. Kyoto,Japan,August 2007.
  • 3Ho T, Medard M, Shi J, et al. On Randomized Network Coding [ A]//Allerton Conference on Communication Control and Com- puting [C]. Monticello, IL,USA,October 2003.
  • 4Chou P A, Wu Y, Jain K. Practical network coding [A]//Aller- ton Conference on Communication, Control, and Computing [C]. Monticello, IL, USA, October 2003.
  • 5Nguyen K, Nguyen T, Cheung S C. Video Streaming with Net- work Coding[J]. Journal of Signal Processing Systems, 2010, 59:319-333.
  • 6Halloush M, Radha H. Network Coding with Multi-Generation Mixing;A Generalized Framework for Practical Network Coding [J]. IEEE Transactions on Wireless Communications, 2011, 10 (2) ,466-473.
  • 7Koutsonikolas D,Wang C C, Hu Y C. CCACK: Efficient Net- work Coding Based Opportunistic Routing Through Cumulative Coded Acknowledgments [A]//IEEE INFOCZ)M 2010 [C]. San Diego, CA, USA, March 2010.
  • 8Sundararajan J K, Shah D, Medard M, et al. Network coding meets TCP [A]///IEEE INFOCOM 2009 [C]. Riode Janeiro, Brazil, April 2009.
  • 9Lin Y, Li B, Liang 13. CodeOR: Opportunistic routing in wireless mesh networks with segmented network coding [A]//The 16th IEEE International Conference on Network Protocols [C]. Or- lando, Florida, USA, October 2008.
  • 10Lin Y, Liang B, Li B. SlideOR: Online Opportunistic Network Coding in Wireless Mesh Networks [A] // IEEE INFOCOM 2010 [C]. San Diego,CA,USA,March 9,010.

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计算机科学
2010年 第4期

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