Energy optimization of D2D communications using relay nodes and data entropy

National audienceDevice-to-device communications (D2D) are announcedas a cornerstone of the next generation of wirelesscommunications (5G). They offer the promise to drasticallyreduce the energy consumption of devices, and increasenetwork coverage areas. In this paper, we proposeto study the influence of a relay device in a D2D communication,to show the impact of this addition on the energyconsumption of each device, and the whole network. Ourwork provides a new perspective on the D2D communicationsby integrating innovative topology based on dataentropies. We show that this novel method leads to a reductionof the energy consumed by the relay device, andthe network in general