陈杰,谢显中,黄倩,黎佳.无线车载网络中一种基于跨层优化的网络编码TCP协议[J].计算机科学,2019,46(2):88-94
无线车载网络中一种基于跨层优化的网络编码TCP协议
Network Coding TCP Protocol Based on Cross-layer Optimization in Wireless Vehicle Networks
投稿时间:2018-02-23  修订日期:2018-05-17
DOI:
中文关键词:  无线车载网络,TCP优化,网络编码,跨层设计,VC-TCP/NC
英文关键词:Wireless vehicular networks,TCP optimization,Network coding,Cross-layer design,VC-TCP/NC
基金项目:本文受国家自然科学基金(61271259,61471076,61601070),重庆市教委科学技术研究项目(KJ1600411),重庆市基础与前沿研究计划项目(CSTC2016jcyjA0455),长江学者和创新团队发展计划(IRT1299),重庆市教委重点实验室专项经费(JK12010000062),重庆市研究生科研创新项目(CYS17223)资助
作者单位E-mail
陈杰 重庆邮电大学宽带接入网络研究所 重庆400065  
谢显中 重庆邮电大学宽带接入网络研究所 重庆400065 xiexz@cqupt.edu.cn 
黄倩 重庆邮电大学宽带接入网络研究所 重庆400065  
黎佳 重庆邮电大学宽带接入网络研究所 重庆400065  
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中文摘要:
      无线车载网络(Wireless Vehicular Networks,WVN)具有研究价值和重要应用价值,目前关于WVN中的网络编码TCP协议的研究并不多,且对跨层的优化也没有被重视。文中首先针对无线车载网络中不同的丢包原因,给出了一种基于随机线性网络编码的跨层联合优化方法VC-TPC/NC,可以针对不同丢包原因采取不同的处理方式;进一步,重新设计了网络编码层发送端的发送策略,并通过理论分析说明了VC-TCP/NC在时延和网络吞吐量方面的优势;最后,在不同场景下的仿真结果表明,VC-TCP/NC的性能相比于传统TCP与TCP/NC等性能有较大提高。
英文摘要:
      Wireless vehicle network (WVN) has important research and application value.At present,there are few researches on network coding TCP protocol in wireless vehicle network.At the same time,cross-layer optimization has not been paid attention seriously.This paper first addressed different causes of packet loss in wireless vehicle networks,and gave a cross-layer joint optimization method VC-TPC/NC based on stochastic linear network coding.Aiming at different reasons for packet loss,different treatment were given.Further,the sending strategy of network coding layer sender was redesigned,and the advantages of VC-TCP/NC in the delay and network throughput were illustrated through theoretical analysis.Finally,simulation results in different scenarios show that the performance of VC-TCP/NC is greatly improved compared to the performance of traditional TCP and TCP/NC.
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