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中文摘要：
近年来结合P2P的媒体分发网络（MDN）越来越受到人们的关注.它通过将P2P技术引入到传统的内容分发网络,增加了网络的可扩展性,提高了网络的服务质量.为了对这种MDN网络的性能进行分析,本文建立一个线性规划模型,利用该模型可求解出MDN网络的最大吞吐量,进而分析了网络的承载量.通过实验,分析了模型中不同参数和策略配置对网络承载量的影响,从而找出了影响系统性能的各种因素.这些结果对进一步提升网络性能、配置网络参数有很好的指导作用.
英文摘要：
In recent years,P2P-combined media delivery network（MDN） has gained more and more attention.The expandability and service quality of network is greatly improved due to the introduction of P2P technology.A linear programming model was established to study the performance of this MDN network.Using this model,we found the maximum throughput of MDN network,in turn,analyzed its carrying capacity.Then through experiment,we studied the influence of different parameter and policy configurations in the model on the network＇s carrying capacity,consequently,identified the various factors that affect system performance.These results will have a guiding effect on the further improvement of system performance and configuration of network parameters.
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