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《Telecommunications Science》 2010-05
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Research on Congestion Control Algorithm of Video Transmission Based on Layered Multicast

Wang Mingwei, Li Qin, Wang Qi, Lin Jianzhong (College of Telecommunications and Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210003, China)  
Layered multicast scheme is able to cope with the heterogeneity of receivers in multicast application by supplying multiple rates, and is very important to improving quality of service of Internet. Transmission characteristics of layered multicast are analyzed. Then, a video transmission-oriented layered multicast congestion control algorithm (VLMCC) is proposed, by drawing the I frames, P frames and B frames from MPEG video stream and forming three layered streams, such as base layer, enhanced layer 1 and 2. And a priority queue mechansim is proposed for immediate node. Simulation results show that the proposed algorithm VLMCC is adaptive to heterogeneity of video multicast receivers and can improve video transmission quality greatly.
【Fund】: 江苏省高校自然科学研究基金资助项目(No.09KJB520009)
【CateGory Index】: TN919.8
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Chinese Journal Full-text Database 1 Hits
1 WANG Ming-wei,LIN Jian-zhong,WANG Qi(College of Telecommunications and Information Engineering,Nanjing Universityof Posts and Telecommunications,Nanjing 210003,China);A Video Stream Transmission Control Algorithm Based on Priority Differentiation[J];Computer Technology and Development;2011-02
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