The authors in [2] propose a scheme to process part of the data processing locally on the node (e.g. mobile device), while other parts could be offloaded to the cloud. In the proposed design, the authors consider computation offloading from the cloud to the wireless nodes (and vice versa) as an effective mechanism for energy optimization. The study considers mobile e-health and proposes a multi-layered optimization approach that combines computational offloading with optimization mechanisms.