摘要
针对现有VOD系统中组播技术应用的缺陷和不足,提出了一种将覆盖网络组播技术与Patching算法结合应用于VOD系统的方案.该方案充分利用了覆盖网络组播技术的优点,结合VOD系统特性及Patching补偿流技术,在合理的利用网络资源的条件下减小了服务器负载.文中论述了覆盖网络组播技术的概念、协议分类及Patching算法的特点,同时对该方案中的主要技术步骤从组播组的组织、新节点的加入到节点的离开分别进行了分析.
For the limitation and deficiency of multicasting on VOD, this paper presents a scheme that integrates Overlay Network Multicast and Patching Algorithm for VOD. This scheme exploits the merit of Overlay Network Multicast with the characteristic of VOD and Patching stream, reducing the stress of server under good use of network resource. This paper describes the notion and clasification of Overlay Network Multicast Protocols, as well as the characteristics of Patching Algorithm. It alse analyzes the main technologic flow of this scheme such as the organization of multicast, new node joining and node leaving.
出处
《北京交通大学学报》
EI
CAS
CSCD
北大核心
2005年第5期19-22,共4页
JOURNAL OF BEIJING JIAOTONG UNIVERSITY
基金
中兴基金VOD系统覆盖网络组播技术应用研究(ZXBJTU2004001)
