Table 1 Compared algorithms

The approach of multi-objective and meta-heuristic VNE which based on particle swarm optimization, aiming at both maximizing the revenues and minimizing the energy consumption. It adopts the adaptive weighted strategy.

An energy-aware VN embedding algorithm proposed in our previous work [14]. It is also based on particle swarm optimization.

The single-objective VN embedding algorithm proposed in [12], aiming at maximizing the revenues by optimizing the resource cost. Take the shortest path algorithm to determine the link mapping solution after node mapping stage.