| SPHERE： a scalable multicast framework in overlay networks |
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| 引用本文： | 刘云 Shen Bo Zhang Hongke. SPHERE： a scalable multicast framework in overlay networks[J]. 高技术通讯(英文版), 2006, 12(1): 1-5 |
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| 作者姓名： | 刘云 Shen Bo Zhang Hongke |
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| 作者单位： | School of Electronics and Information Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | This paper presents Sphere, a scalable multicast framework in overlay network. Sphere is a highly efficient, serf-organizing and robust multicast protocol overlayed on the Internet. The main contrihutions of this paper are twofold. First, Sphere organizes the control topology of overlay network in two directions： horizontal and vertical. The horizontal meshes are used to locate and organize hosts in tracks, and the vertical meshes are. used to manage the data paths between tracks. Second, Sphere balances stress and stretch of the overlay network by assigning hosts into different tracks and clusters. This structure distributes stress on the muhicast trees uniformly, and meantime makes path stretch as small as possible. Simulations results show that Sphere can support multicast with large group size and has good performance on organizing meshes and building data delivery trees.
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| 关 键 词： | 多址通信 覆盖网络 分组管理 自组织 |
| 收稿时间： | 2004-11-10 |
SPHERE: a scalable multicast framework in overlay networks |
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| Liu Yun,Shen Bo,Zhang Hongke. SPHERE: a scalable multicast framework in overlay networks[J]. High Technology Letters, 2006, 12(1): 1-5 |
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| Authors: | Liu Yun Shen Bo Zhang Hongke |
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| Abstract: | This paper presents Sphere, a scalable multicast framework in overlay network. Sphere is a highly efficient, self-organizing and robust multicast protocol overlayed on the Internet. The main contributions of this paper are twofold. First, Sphere organizes the control topology of overlay network in two directions: horizontal and vertical. The horizontal meshes are used to locate and organize hosts in tracks, and the vertical meshes are used to manage the data paths between tracks. Second, Sphere balances stress and stretch of the overlay network by assigning hosts into different tracks and clusters. This structure distributes stress on the multicast trees uniformly, and meantime makes path stretch as small as possible.Simulations results show that Sphere can support multicast with large group size and has good performance on organizing meshes and building data delivery trees. |
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| Keywords: | multicast overlay networks group management self-organization |
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