云环境下P2P流媒体传输关键技术

随着流媒体应用需求的日益增加，不断改进和完善现有流媒体系统性能势在必行，将云计算引入流媒体系统成为未来流媒体系统的一大趋势．本文简单分析了云计算、CDN（ContentDeliveryNetwork）St]P2P（PeertoPeer）网络的优缺点和研究现状．主要讨论并分析了云环境下的P2P流媒体传输系统所面临的带宽问题、流媒体数据处理、服务质量问题和系统中的关键技术——虚拟化技术、存储管理技术、调度技术和复制技术．此外，从搭建云计算实验环境角度。本文列举了目前比较流行的5种仿真实验手段．

Key Technologies of P2P Streaming Media Transmission in the Cloud Environment

With the increasing demand of application of streaming media, continuous improvement and perfecting the existing streaming media system performance is imperative, and introducing cloud computing into streaming media system becomes a major trend of the streaming media system. This paper simply analyzes the advantages and disadvantages of cloud computing, CDN and P2P networks, and research development. The paper mainly discusses the problems of P2P streaming media transmission system in the cloud environment which are bandwidth, process of streaming data, quality of service. After that, summarizing virtualization technologies, storage management techniques, scheduling techniques and replication technology in the system. Furthermore, from the perspective of building experimental environment of cloud computing, the paper cited some popular means of simulation.