… existing virtual network as the network evolves. The problem focus on minimizing the network
… and xij to represent the mapping relationship of virtual network H with the original substrate …

… In the migration algorithm described in Algorithm 4, we fix the node mapping of the virtual
networks already running on the substrate. We perform path migration by rerunning the …

… the underlying network resources… virtual network mapping algorithm based on network
features and associations. Firstly, the network features related to reliable virtual network mapping …

… , Network Virtualization (NV) offers efficient resource sharing by embedding multiple Virtual
Networks (VNs) on a single Substrate Network (… a mapping of the virtual nodes and links onto …

… In this paper, we consider O-OFDM networks with timevariant VON … link mapping and node
mapping. Similar to the situation of the link mapping in transparent VNE over WDM networks […

… between node and link mapping stages while mapping the virtual network. We compared …
and R-ViNE algorithms for virtual network mapping under various performance metrics using …

… into several virtual resources). For the mapping of virtual nodes and virtual links, several …
in node and link mapping, most algorithms treat node and link mapping as separate steps. It …

… We develop VBNM approach that maps an additional virtual-backup node for each VN.
The selection of the virtualbackup node is among the physical nodes that have enough …

… a novel virtual network mapping algorithm that can realize mapping cost minimizing, called
… network virtualization environment, that is virtual network has lifecycle and substrate network …

… model and then we introduce the parallel genetic algorithm for VNE link mapping in Section
IV. We present the performance evaluation of the proposed algorithm in Section V. Section …