移动P2P医疗流媒体数据调度算法
Data Scheduling Approach for Medical Streaming in Mobile P2P Network
本文主要研究移动环境下医疗流媒体传输的数据调度问题。本文在移动P2P(Peer-toPeer)网络上，提出基于分层流媒体的斜纹优先级缓存模型(Twill Priority Cache Model, TPCM)，并基于该模型提出一种移动P2P医疗流媒体算法(Mobile Medical P2P Algorithm, MMP2P)。本文研究了移动医疗的流媒体应用业务，包括移动医疗教学视频和远程医疗会议视频等，其特点是网络节点数小于传统P2P网络，对流媒体的流畅度和均衡网络流量要求较高。TPCM模型将缓存区按照优先级划分为两个区域，采用斜纹方式分配带宽。MMP2P算法根据网络信息动态调整节点选择和请求。仿真结果表明，该算法在流媒体中断概率、服务器负载率、节点上传带宽利用率和节点平均下载速率等方面有明显的改善，更适应移动P2P医疗流媒体的传输场景。
In this paper, we investigated into data scheduling problem for medical streaming operating over a mobile peer-to-peer (P2P) network scenario. This paper proposes twill priority cache model based on layered streaming (TPCM) and a mobile medical P2P algorithm (MMP2P) to data scheduling. This scenario includes medical teaching video and medical conference video which node number is less than that of traditional P2P network. In order to improve video fluency and network flow equilibrium, TPCM model is divided into two parts and distributes bandwidth as twill model. And MMP2P is a network aware algorithm which adjusts peers selection and data based on network information. Simulation results show that with the proposed algorithm, system performance in terms of outage probability , server load ratio , peers upload utilizations and peers average download rate are greatly improved.
王冬宇、马小鹏、王晓湘
通信无线通信医学研究方法
移动P2P网络医疗流媒体数据调度分层流媒体
mobile P2P networkmedical streamingdata schedulinglayered streaming
王冬宇,马小鹏,王晓湘.移动P2P医疗流媒体数据调度算法[EB/OL].(2014-12-16)[2025-08-05].http://www.paper.edu.cn/releasepaper/content/201412-464.点此复制
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