A Service-Reliability-Based Resource Mapping Method in Smart Grid Virtual Networks

In order to guarantee the reliability of services and reduce the waste of resources in traditional dual-path protection method, a service-reliability-based resources mapping method is proposed in this paper. The virtualization technology is adopted in our method for smart grid Fiber-Wireless access networks. Firstly, a priority-and fault-probability based primary link mapping model is set up. It classifies the service priorities level and provides high-priority services with high-reliability links to improve service reliability of the whole network. Then, a resource-saving aimed backup link mapping model is established to allocate the multiple services as many as possible for one backup link to save resources. At last, the genetic algorithm is used to solve the mapping model. The evaluation results show that our proposed method increases service reliability, and improves resource utilization.

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