摘要
针对多频道直播系统中存在的用户启动延迟大、播放滞后、频道切换扰动等问题,以及为了满足大规模用户需求而部署大量视频服务器致使成本昂贵的缺点,本文提出了一种基于混合云存储的多频道视频直播方案.该方案设计了公有云服务器和私有云服务器以及与用户间的应用层网络架构,引入P2P技术提升直播系统的协作功能;并构建了服务器选择和带宽分配模型.实施结果表明,该方案能有效提高系统服务能力,改善直播视频质量.
A multi-channel live video scheme based on hybrid cloud storage has been presented in the paper,one of its purpose is to solve problems in the multi-channel live video system,which are user start delay,playback lag,channel switching perturbation and so on,and the other is to reduce the cost caused by deploying a large number of video servers in order to meet the needs of large-scale users.The scheme designs the application layer network structure among public cloud server,private cloud server and the users,and it also introduces the P2P technology to enhance the cooperation function of the live broadcast system,and last the server selection and the bandwidth allocation model is constructed.The implementation data reveals that the plan can improve system service capabilities and improve live video quality.
出处
《南华大学学报（自然科学版）》
2017年第2期62-66,共5页
Journal of University of South China：Science and Technology
基金
国家自然科学基金项目(71172219)
安徽省科技厅重大软科学项目(1502052006)
关键词
多频道直播
混合云存储
P2P
带宽分配
multi-channel live video
hybrid cloud storage
P2P
bandwidth allocation
