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| 基于P2P网络的动态QoS多源多播模型 | |
| 引用本文： | 赵磊,陈世平,赵树枫. 基于P2P网络的动态QoS多源多播模型[J]. 计算机应用, 2009, 29(4): 1087-1091 |
| 作者姓名： | 赵磊 陈世平 赵树枫 |
| 作者单位： | 1. 上海理工大学,计算机与电气工程学院,上海,200093 2. 上海理工大学,计算机与电气工程学院,上海,200093;上海理工大学,信息化办公室,上海,200093 3. 上海理工大学,信息化办公室,上海,200093 |
| 基金项目： | 国家自然科学基金，上海市(第三期)重点学科建设项目 |
| 摘 要： | 针对服务质量(QoS)约束的覆盖网络多播问题，提出了一个适合有多个数据源的多播模型。该模型中每个数据源不必维护一个以它为根的多播树，每个节点只需维护局部状态信息，多播信息以类似洪泛的方式传输。通过控制，信息的传输路径形成树型结构，多播树可动态调整来适应以不同源节点发起的满足QoS要求的多播应用。实验结果表明，该模型的节点多播覆盖率高，通过控制节点的子节点数，可使多播树的调整代价达到最低。 |
| 关 键 词： | P2P网络 覆盖网多播 服务质量 |
| 收稿时间： | 2008-10-14 |
| 修稿时间： | 2008-12-19 |
Multi-source overlay multicast model of dynamic QoS-constrained based on P2P network |
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| ZHAO Lei,CHEN Shi-ping,ZHAO Shu-feng. Multi-source overlay multicast model of dynamic QoS-constrained based on P2P network[J]. Journal of Computer Applications, 2009, 29(4): 1087-1091 | |
| Authors: | ZHAO Lei CHEN Shi-ping ZHAO Shu-feng |
| Affiliation: | 1.School of Computer and Electrical Engineering;University of Shanghai for Science and Technology;Shanghai 200093;China;2.Information Office;China |
| Abstract: | A multi-source overlay multicast model was built to solve the problem of Quality of Service (QoS) multicast in overlay network. In this model, each node maintained the local state information instead of one tree per source, and the model delivered multicast message in a way similar to flooding. By controlling, the message transmission path formed a tree structure. The multicast tree can dynamically adjust and adapt to a different source node initiated multicast applications, which meets the requirements of QoS. The experimental results show that multicast coverage rate of the model is high, and the cost of adjusting the multicast tree can be the lowest by controlling the number of sub-node of modes. |
| Keywords: | P2P network overlay multicast Quality of Service (QoS) |
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