电信科学 ›› 2015, Vol. 31 ›› Issue (11): 36-42.doi: 10.11959/j.issn.1000-0801.2015255

• 研究与开发 • 上一篇    下一篇

软件定义承载网中基于负载均衡的虚拟网络资源分配算法

王力1,赵季红1,2,曲桦1,郭涯1   

  1. 1 西安交通大学电子与信息工程学院 西安 710049
    2 西安邮电大学通信与信息工程学院 西安 710061
  • 出版日期:2015-11-20 发布日期:2015-12-14
  • 基金资助:
    国家自然科学基金资助项目;国家高技术研究发展计划（“863”计划）基金资助项目;江苏省未来网络创新研究院未来网络前瞻性研究项目

Virtual Network Resource Allocation Algorithm Based on Load Balance in Carrier-SDN

Li Wang1,Jihong Zhao1,2,Hua Qu1,Ya Guo1   

  1. 1 School of Electronic and Information Engineering,Xi'an Jiaotong University,Xi'an 710049,China
    2 School of Communication and Information Engineering,Xi'an University of Posts and Telecommunication,Xi'an 710061,China
  • Online:2015-11-20 Published:2015-12-14
  • Supported by:
    The National Natural Science Foundation of China;The National High Technology Research and Development Program of China（863 Program）;Jiangsu Future Networks Innovation Institute Prospective Research Project on Future Networks

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摘要：

在具有集中式控制特点的carrier-SDN（软件定义承载网）中应用网络虚拟化技术为虚拟网络分配资源，实现承载网资源分配是解决承载网结构僵化的重要途径。提出carrier-SDN中基于负载均衡的虚拟网络资源分配算法。首先，建立carrier-SDN多层模型；其次，根据虚拟网络映射算法的特点，二值化粒子群优化算法；最后，以负载均衡为优化目标，求解虚拟网络映射问题。仿真结果表明，与已有方法相比，所提算法在虚拟网络负载均衡性、请求接受率和网络收益方面性能优越。

关键词: 软件定义网络, 软件定义承载网, 虚拟网络映射, 粒子群优化

Abstract:

Resource allocation algorithm for virtual networks in carrier-SDN based on load balance was proposed.Firstly,multiple-layered model of carrier-SDN was constructed.Secondly,the binaryzation of particle swarm optimization algorithm with the characteristic of virtual network embedding（VNE）algorithm was realized.Finally,load balance was set as optimization object,then the solution of VNE problem was got.The simulation results demonstrate that the proposed algorithm has superior performance in terms of load balance,acceptance ratio and average compared with existing methods.

Key words: software defined networking, carrier-SDN, virtual network embedding, particle swarm optimization

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