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首页> 外文期刊>Advances in multimedia >Enhancing Scalability in On-Demand Video Streaming Services for P2P Systems
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Enhancing Scalability in On-Demand Video Streaming Services for P2P Systems

机译:增强P2P系统点播视频流服务的可伸缩性

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Recently, many video applications like video telephony, video conferencing, Video-on-Demand (VoD), and so forth have produced heterogeneous consumers in the Internet. In such a scenario, media servers play vital role when a large number of concurrent requests are sent by heterogeneous users. Moreover, the server and distributed client systems participating in the Internet communication have to provide suitable resources to heterogeneous users to meet their requirements satisfactorily. The challenges in providing suitable resources are to analyze the user service pattern, bandwidth and buffer availability, nature of applications used, and Quality of Service (QoS) requirements for the heterogeneous users. Therefore, it is necessary to provide suitable techniques to handle these challenges. In this paper, we propose a framework for peer-to-peer- (P2P-) based VoD service in order to provide effective video streaming. It consists of four functional modules, namely, Quality Preserving Multivariate Video Model (QPMVM) for efficient server management, tracker for efficient peer management, heuristic-based content distribution, and light weight incentivized sharing mechanism. The first two of these modules are confined to a single entity of the framework while the other two are distributed across entities. Experimental results show that the proposed framework avoids overloading the server, increases the number of clients served, and does not compromise on QoS, irrespective of the fact that the expected framework is slightly reduced.
机译:最近,许多视频应用程序,例如视频电话,视频会议,视频点播(VoD)等,已经在Internet上产生了各种各样的消费者。在这种情况下,当异构用户发送大量并发请求时,媒体服务器起着至关重要的作用。此外,参与Internet通信的服务器和分布式客户端系统必须向异构用户提供合适的资源,以满足其需求。提供合适资源的挑战在于分析用户服务模式,带宽和缓冲区可用性,使用的应用程序的性质以及异构用户的服务质量(QoS)要求。因此,有必要提供合适的技术来应对这些挑战。在本文中,我们提出了一种基于对等(P2P)的VoD服务的框架,以提供有效的视频流。它包含四个功能模块,分别是用于高效服务器管理的质量保留多元视频模型(QPMVM),用于高效对等管理的跟踪器,基于启发式的内容分发以及轻量级激励共享机制。这些模块中的前两个模块仅限于框架的单个实体,而其他两个模块则跨实体分布。实验结果表明,所提出的框架避免了服务器的过载,增加了服务的客户端数量,并且不影响QoS,而与预期框架略有减少无关。

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