COBRA车载网络中基于协作的大数据传输增强机制.pdf

计算机研究与发展 ISSN 1000—12391CN11-1777／TP of Researchand Journal Development Computer COBRA一-车载网络中基于协作的大数据传输增强机制 田锐1’3孙利民2刘燕4-5建5 ·(中国科学院计算技术研究所北京100190) 2(中国科学院软件研究所信息安全国家重点实验室北京 100190) 3(中国科学院研究生院北京100190) ‘(北京大学软件与微电子学院北京102600) 5(诺基亚研究中心北京 100176) (sunlimin@is．iseas．ae．cn) COBRA：ACollaborationBasedReinforcementMechanismforMassTransmissionin VANETs Tian Rui‘“，SunLimin2，LiuYan4，andMa Jian5 1(Institute 100190) ofComputingTechnology，ChineseAcademyofSciences．Beijing 2(State KeyLaboratoryofInformationSecurity，Institute 100190) ofSoftware，ChineseAcademyofSciences，Beijing 3(Graduate Chinese Universityof Academyof 100190) Sciences，Beijing ‘(School and 102600) ofSoftwareMicroelectronics,，Peking University，Beijing 5(NokiaResearch 100176) Center，Beijing AbstractVehicularadhoe networks(VANETs)allowvehiclestoform networkswhile self-organized canoffer methodsaccessthe forthe driving，which to Internet the of cheap passengers．Whenscope VANETsbecomes oftenneededtoforwardmassivedatatosomefixedInternetAPs larger，it’S distributedinthe arealotof toreducethe city．There routingalgorithmsproposed message andalsoreduce bandwidth onVANETs，butmostofwhichareunder propagationdelay consumption the thatthebandwidthbetweenvehiclesisunlimitedSOma