灵活栅格光网络中节点链路协同映射算法

With the increasing demand of network, network traffic grows exponentially. Network virtualization can solve ossification of Internet by supporting multiple virtual network(VN) architectures on a shared substrate network. Meanwhile benefiting from its higher spectrum efficiency, flexible grid optical network gradually takes place of traditional WDM network. Thus how to map virtual nodes and virtual links onto the substrate network efficiently in flexible grid network has beome a major challenge. This paper studies coordinated node and link mapping in flexible grid optical network and proposes an IG-VNE algorithm. Simulation experiments show that the proposed algorithm increase the acceptance ratio.