THE DEGREES OF FREEDOM FOR
ENERGY MANAGEMENT
For the radio network, the prosumer “comfort” holds an important objective in energy management. The comfort can be considered as a time variant capacity offered by the femto owner which is a function of the time the prosumer has the femto node in open access. Open access could be controlled by the operator when necessary, under command flow between the CBS and femtocells, to reduce the time interval of open access. To stimulate prosumers to this direction, pricing/bonus schemes upon femto owners that share their resources could be considered [5]. Furthermore, according to the network topology, the number of FBSs in the radio network can have a significant effect on energy management. In data center networks the degrees of freedom for energy management are further enhanced by the diversity in terms of Power Usage Effectiveness (PUE), free-cooling and RES characteristics across different geographical areas of the datacenters of the cloud provider. Finally, delay tolerant services such as non-human centric data for M2M/meter readings and demanding large computational tasks in the cloud are expected to increase in number in the near future [1]. This offers flexibility to the network to manage its energy consumption by scheduling in an appropriate way the execution of the requests. For this
type of services we have similarly to the delay tolerant smart grid loads, thresholds that incorporate an initiation point in time a, a deadline of execution d and a required bandwidth of the task for radio networks and a required processing burden for the data center network. Service
Level Agreements (SLAs) between the operators and the users can increase the degrees of freedom for network adaptation by appropriately arranging parameters a and d.