Research on video streaming media cooperative downloading in vehicular ad hoc network

Liang CHEN; Jun WANG; Rong CHEN; Xiang GU; Jin WANG; Jie WAN

doi:10.11959/j.issn.1000-436x.2019018

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Research on video streaming media cooperative downloading in vehicular ad hoc network

Papers | 更新时间：2024-06-05

- Research on video streaming media cooperative downloading in vehicular ad hoc network
- Journal on Communications Vol. 40, Issue 1, Pages: 51-63(2019)
- 作者机构：
  
  1. 南通大学计算机科学与技术学院，江苏南通 226019
  2. 江苏工程职业技术学院图文信息中心，江苏南通 226007
- 作者简介：
- 基金信息：
  
  The National Natural Science Foundation of China(61602267);University Science Research Project of Jiangsu Province(15KJB520029);University Science Research Project of Jiangsu Province(16KJB520038);Research on Modern Educational Technology of Jiangsu Province(2017-R-53720);Educational Information Research of Jiangsu Province(20172168);Virtual Reality of Nantong University(13052001);Postgraduate Case Library of Nantong University(AL17010);Training Program of Innovation for Undergraduate(2018117);Zhongtian Smart Equipment Project(17ZH040)
- DOI：10.11959/j.issn.1000-436x.2019018
  CLC： TN918
- Online First：2019-01，
  
  Published：25 January 2019
- 稿件说明：
移动端阅览
Liang CHEN, Jun WANG, Rong CHEN, et al. Research on video streaming media cooperative downloading in vehicular ad hoc network[J]. Journal on Communications, 2019, 40(1): 51-63.
DOI：

Liang CHEN, Jun WANG, Rong CHEN, et al. Research on video streaming media cooperative downloading in vehicular ad hoc network[J]. Journal on Communications, 2019, 40(1): 51-63. DOI： 10.11959/j.issn.1000-436x.2019018.

摘要

针对车辆通信范围及转发状态下信道竞争问题，建立了同向多跳下载流量模型。根据该模型与视频流媒体特点，提出了一种基于服务质量的双向协助下载方案。首先，同向车辆对目标车辆进行多跳协助下载，减少目标车辆等待对向协助车辆到达所消耗的时间。其次，后方基站根据时间优先或画质优先的选车策略，向符合条件的对向车辆加载数据，对向车辆与目标车辆相遇时进行一跳协助下载。NS 仿真表明，所提方案在下载耗时方面优于DSRelay算法与VCoDS算法，并能将画质参数PSNR值维持在较好水平。

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 ＆amp; 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

Keywords

references

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