CAJ | 학술논문

研究了P2P流媒体直播系统的特性和体系结构.对组播树的构建与设计进行了详细的说明,提出一种单播树、多播树结合的组播树构建方案,该方案结合了单组播树维护方便、多组播数节点负载均衡的优点.对节点组织策略进行了分析,对新加入节点利用及时服务策略进行了研究,提出一种及时优化策略.在新节点加入的时候就探测其服务能力,调整组播树结构,及时发挥新加入节点的优势,提升系统服务能力.
연구료P2P류매체직파계통적특성화체계결구.대조파수적구건여설계진행료상세적설명,제출일충단파수、다파수결합적조파수구건방안,해방안결합료단조파수유호방편、다조파수절점부재균형적우점.대절점조직책략진행료분석,대신가입절점이용급시복무책략진행료연구,제출일충급시우화책략.재신절점가입적시후취탐측기복무능력,조정조파수결구,급시발휘신가입절점적우세,제승계통복무능력.
This paper studies characteristics and architecture of P2P streaming broadcast systems.Construction and design methods of multicast tree are first discussed.A scheme combining unicast and multicast trees is proposed,which combines advantages of easy maintenance of unicast tree and load balancing of multicast tree.Based on analyses of the strategies of node organization and timely service of new nodes,an optimized strategy for immediate service is introduced.When new nodes are added,the system will detect their abilities of providing services,and adjust the multicast tree structure to utilize the ability of the new nodes,thus enhance the system capacity.