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无线Mesh网络规则拓扑结构与容量研究 被引量:5
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作者 胡致远 王景 +1 位作者 邓建良 黄东 《计算机应用研究》 CSCD 北大核心 2010年第11期4197-4200,4221,共5页
拓扑控制技术可以有效地提高无线Mesh网络的网络容量并增强网络可靠性,采用拓扑控制所构成的规则网络拓扑结构还具有良好网络路由和链路分集能力。通过对随机拓扑和规则拓扑的网络容量与拓扑特征的分析,表明规则拓扑在无线Mesh网络中具... 拓扑控制技术可以有效地提高无线Mesh网络的网络容量并增强网络可靠性,采用拓扑控制所构成的规则网络拓扑结构还具有良好网络路由和链路分集能力。通过对随机拓扑和规则拓扑的网络容量与拓扑特征的分析,表明规则拓扑在无线Mesh网络中具有优良网络品质。为了使规则拓扑适应密集组网的应用环境,设计一种虚拟层次化的规则拓扑结构;进一步通过拓扑分割构成微虚拟小区解决网络的可扩展性问题。仿真证明规则拓扑及其拓扑分割技术提高了无线Mesh网络容量等网络性能。 展开更多
关键词 吞吐量 拓扑控制 规则拓扑 虚拟层次化结构
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Scalable group management in large-scale virtualized clusters
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作者 Zhou Wei Wang Lei +2 位作者 Meng Dan Yuan Lin Zhan Jianfeng 《High Technology Letters》 EI CAS 2011年第3期263-271,共9页
To save cost, more and more users choose provision resources at the granularity of virtual machines in cluster systems, especially data centres. Maintaining a consistent member view is the foundation of reliable clust... To save cost, more and more users choose provision resources at the granularity of virtual machines in cluster systems, especially data centres. Maintaining a consistent member view is the foundation of reliable cluster managements, and it also raises several challenge issues for large scale cluster systems deployed with virtual machines (which we call virtualized clusters). In this paper, we introduce our experience in design and implementation of scalable member view management on large-scale virtual clusters. Our research contributions include three-aspects : 1 ) we propose a scalable and reliable management infrastructure that combines a peer-to-peer structure and a hierarchy structure to maintain a consistent member view in virtual clusters; 2 ) we present a light-weighted group membership algorithm that can reach the consistent member view within a single round of message exchange; 3 ) we design and implement a scalable membership service that can provide virtual machines and maintain a consistent member view in virtual clusters. Our work is verified on Dawning 5000A, which ranked No. 10 of Top 500 super computers in November, 2008. 展开更多
关键词 virtualized clusters consistent member view scalable group membership SGMS
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