P2P网络多视点立体视频传输的数据块调度策略.pdf

6 andApplications计算机工程与应用 ComputerEngineering P2P网络多视点立体视频传输的数据块调度策略 刘晓辉，金志刚，卫津津，赵西满 LIU Ximan Xiaohui，JIN Zhigang，WEIJinjin，ZHAO 天津大学电子信息工程学院，天津300072 SchoolofElectronicandInformation Engineering，TianjinUniversity，Tianjin300072，China LIU a1．Chunk forP2Pnetworkmulti—view video Xiaohui，JINZhigang，WEIJinjin，et schedulingstrategy stereoscopic and transmission．ComputerEngineeringApplications，2013，49(11)：6—10． Abstract：For video，the and ofdatachunksmake onvideo becauseof stereoscopicimportanceurgency greaterimpact quality the amountofdataandthe andtransmissioninto consideration， large complexcodingalgorithms．Takingplaybackquality efficiency transmission it aP2Pchunk andrandomtransmission．Itcalculates priority proposes schedulingalgorithmjointbypriority tochunk and estimates andmakesuseofextra according importance，urgencyrarity,meanwhileneighbors’transmissionability bandwidthtotransmit bettervideo data—distributionuniformedand chunks randomly．Thealgorithmprovides quality,makes transmission andsimulationsthe ofthe PSNR， guarantees performance．Theexperiments verifyvalidityalgorithmbyanalyzing anddata radio． start—updelay,peerthroughputarriving video；Peer-to-Peer(P2P)；chunk Keywords：stereoscopic scheduling；PeekSignal-to-NoiseRatio(PSNR)；start-updelay；peer radio throughput；dataarriving 摘要：立体视频数据量大、