基于全局资源容量的虚拟网络嵌入算法 |
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引用本文:孙新丽?覮.基于全局资源容量的虚拟网络嵌入算法[J].计算技术与自动化,2019,(1):81-87 |
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中文摘要:采用全局资源容量(GRC)度量方法来量化每个底层物理节点的嵌入潜力,并提出了一种启发式虚拟网络嵌入算法(GRC-VNE),最大限度地提高基础设施提供商(InP)的收益。该算法采用贪婪的负载均衡方式依次嵌入每个虚拟节点,并结合基于Dijkstra算法的最短路径路由嵌入每个虚拟链路。仿真结果表明:与考虑整个底层物理网络资源的RW-MM-SP算法和TA算法相比,所提出的GRC-VNE算法能够实现更低的请求阻塞概率和更高的收益。 |
中文关键词:网络虚拟化 全局资源容量 虚拟网络嵌入 虚拟网络请求 |
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Virtual Network Embedding Algorithm Based on Global Resource Capacity |
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Abstract:This paper uses the Global Resource Capacity (GRC) metric to quantify the embedded potential of each underlying physical node,and proposes a heuristic virtual network embedding algorithm (GRC-VNE) to maximize infrastructure providers (InP). the proceeds. The algorithm uses greedy load balancing to embed each virtual node in turn,and embeds each virtual link with the shortest path route based on Dijkstra algorithm. The simulation results show that the proposed GRC-VNE algorithm can achieve lower request blocking probability and higher benefit than RW-MM-SP algorithm and TA algorithm considering the whole underlying physical network resources. |
keywords:network virtualization global resource capacity virtual network embedding virtual network request |
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