| 基于CATV网的可靠多播机制研究 |
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| 引用本文： | 朱梅,李章维.基于CATV网的可靠多播机制研究[J].电视技术,2011,35(8):58-60. |
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| 作者姓名： | 朱梅 李章维 |
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| 作者单位： | 浙江科技学院信息与工程学院;浙江工业大学信息工程学院; |
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| 基金项目： | 浙江省科技厅计划项目(2008C21080); 国家“863”计划项目(2008AA04A105) |
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| 摘 要： | 针对CATV网的带宽优势,提出了一种面向CATV网的IP多播流分发服务机制,客户端通过DVB卡分层接收流式文件,并利用IP网作为回传链路。该方案解决了单向广播网无法回传丢包及网络服务情况的问题,对于网络的突发性长时间丢包具有一定的稳健性。仿真结果显示该方案可靠性强,扩展性好,特别适合具有较多接收者的视频流分发。
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| 关 键 词： | 可靠多播 分层编码 前向纠错 丢包率 |
Research on Mechanism of Reliable Multicasting Based on CATV Network |
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| ZHU Mei,LI Zhangwei.Research on Mechanism of Reliable Multicasting Based on CATV Network[J].Tv Engineering,2011,35(8):58-60. |
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| Authors: | ZHU Mei LI Zhangwei |
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| Affiliation: | ZHU Mei1,LI Zhangwei2 (1.College of Information Engineering,Zhejiang University of Science & Technology,Hangzhou 310023,China,2.College of Information Engineering,Zhejiang University of Technology,China) |
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| Abstract: | According to the advantages of the broad bandwidth of CATV network,an IP multicast streaming distribution mechanism based on CATV network is proposed.Clients receive the streaming file with layer by DVB network interface,and internet is used as the return channel to cope with the Probability of Packet Loss (PPL) and QoS in unidirectional broadcasting networks.The robustness is appeared when the packet loss of network bursts for a long time.The simulating results show that the scheme is reliable and expandab... |
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| Keywords: | reliable multicast layered coding forward error correction probability of packet loss |
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