Energy-aware fog and cloud interplay supported by wide area software defined networking

The paper focuses on dynamic resource provisioning in an all optical wide area Software Defined Network supporting energy-aware interplay between fog and cloud. The main contribution of this paper is a latencyAware policy for handling fog related traffic. The policy is combined with anycast strategies in order to form a complete approach able to handle fog and cloud traffic simultaneously. The proposed approach was compared with reference solutions with respect to latency of fog related requests, CO
₂
emission and impact on network performance. It is shown that both latency and carbon footprint may be reduced without significant deterioration of network performance.