Wireless virtual network embedding algorithm through topology awareness

Aiming at the problem that the dynamic arrival of the virtual network requests in the wireless network environment leads to the unbalanced allocation of the substrate network resources and the low acceptance rate of the subsequent requests, a topology-aware wireless virtual network embedding algorithm (WVNEA-TA) is proposed. By analyzing the dynamic topological attributes of the virtual network and the substrate network from local and global perspective, the algorithm sorts the mapping priority of the nodes in embedding process. In addition, considering the substrate link interference and the link load, the algorithm could select substrate bearer path with lower interference and well-resourced. The simulation results show that WVNEA-TA algorithm improves the acceptance rate, and increases the network R/C ratio.