通信学报2019，Vol.40Issue(1)：51-63,13.DOI:10.11959/j.issn.1000-436x.2019018
车载自组织网视频流媒体协助下载研究
Research on video streaming media cooperative downloading in vehicular ad hoc network
摘要
Abstract
The same direction multi-hop downloading network flow model was proposed for vehicle communication range and channel competition under forwarding. According to the model and video streaming media characteristic, the same & opposite direction cooperative downloading quality of service (SODCD-QoS) scheme was presented. First, the same direction vehicles helped the target vehicle to achieve multi-hop cooperative downloading. It can reduce the waste of time which the target vehicle has to wait for opposite direction cooperative vehicle. Secondly, the next base stations loaded data into eligible opposite direction vehicles according to vehicles option strategy based on time first or picture quality first. Then the opposite direction vehicles helped the target vehicle to achieve one-hop cooperative downloading. NS simulations show that the SODCD-QoS scheme is better than DSRelay and VCoDS algorithm in terms of download time. Further, the new scheme can maintain good picture quality PSNR.关键词
车联网/视频流媒体/协助下载/服务质量Key words
vehicular ad hoc network/video streaming media/cooperative downloading/QoS分类
信息技术与安全科学引用本文复制引用
陈亮,王军,陈蓉,顾翔,王进,万杰..车载自组织网视频流媒体协助下载研究[J].通信学报,2019,40(1):51-63,13.基金项目
国家自然科学基金资助项目(No.61602267) （No.61602267）
江苏高校自然科学研究基金资助项目(No.15KJB520029,No.16KJB520038) （No.15KJB520029,No.16KJB520038）
江苏现代教育技术研究课题基金资助项目(No.2017-R-53720) （No.2017-R-53720）
江苏教育信息化研究课题基金资助项目(No.20172168) （No.20172168）
南通大学虚拟仿真基金资助项目(No.13052001) （No.13052001）
南通大学研究生案例库基金资助项目(No.AL17010) （No.AL17010）
大学生创新训练计划基金资助项目(No.2018117) （No.2018117）
中天智能装备基金资助项目(No.17ZH040) （No.17ZH040）
