| 无线车载网络中一种基于跨层优化的网络编码TCP协议 |
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| 引用本文： | 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 |
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| 作者姓名： | 陈杰 谢显中 黄倩 黎佳 |
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| 作者单位： | 重庆邮电大学宽带接入网络研究所 重庆400065;重庆邮电大学宽带接入网络研究所 重庆400065;重庆邮电大学宽带接入网络研究所 重庆400065;重庆邮电大学宽带接入网络研究所 重庆400065 |
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| 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 |
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| 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。
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| 关 键 词： | 无线车载网络 TCP优化 网络编码 跨层设计 VC-TCP/NC |
| 收稿时间： | 2018-02-23 |
| 修稿时间： | 2018-05-17 |
Network Coding TCP Protocol Based on Cross-layer Optimization in Wireless Vehicle Networks |
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| CHEN Jie,XIE Xian-zhong,HUANG Qian and LI Jia. Network Coding TCP Protocol Based on Cross-layer Optimization in Wireless Vehicle Networks[J]. Computer Science, 2019, 46(2): 88-94 |
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| Authors: | CHEN Jie XIE Xian-zhong HUANG Qian LI Jia |
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| Affiliation: | Institute of Broadband Access Technologies,Chongqing University of Posts and Telecommunications,Chongqing 400065,China,Institute of Broadband Access Technologies,Chongqing University of Posts and Telecommunications,Chongqing 400065,China,Institute of Broadband Access Technologies,Chongqing University of Posts and Telecommunications,Chongqing 400065,China and Institute of Broadband Access Technologies,Chongqing University of Posts and Telecommunications,Chongqing 400065,China |
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| Abstract: | 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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| Keywords: | Wireless vehicular networks TCP optimization Network coding Cross-layer design VC-TCP/NC |
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