Azadeh Khazali - Department of Electrical Engineering, Urmia University, Urmia, Iran
Sima Sobhi-Givi - Department of Electrical Engineering, Urmia University, Urmia, Iran
Mahrokh G Shayeteh - Department of Electrical Engineering, Urmia University, Urmia, Iran

Deploying femtocell and D2D network in conventional cellular network is a solution to the high demand of datarates. In this paper FFR structures are presented for heterogeneous networks (HetNets). One of the major challenges inis the problem of limited energy especially the limited battery of users. Thus, managing energy of network is important.In this study, the connection mode is selected based on the maximum energy effficiency (EE). Simulation resultsconfirm that the proposed connection mode selection algorithm is more efficient than the recieved signal strenth (RSS)method.

D2D communication, femtocell, energy efficiency, mode selection