Device to Device Communication Underlaying Cellular Networks Using Energy Efficiency Optimization

Abstract

In this paper we discuss about the D2D 
communication which is used to improve the 
communication rapidly. To maximize the EE, we 
use D2D in 5g networks which is key in D2D. It 
also reduces the throughput latency. We use D2D 
in overlay or underlay, in this we choose underlaid 
over overlaid because of high spectral efficiency. 
However, we give much attention to single cell 
scenario to which are existing technologies and we 
give less attention to maximize the EE of whole problem which is introduced by D2D and cellular. 
The optimization problem is formulated with 
algorithms they are Branch and Bound and 
proposed derivative algorithm. To solve non
convex problem, we proposed a derivative 
algorithm, compare both algorithms which shows 
the propose derivative is lower than the BB. 
Finally, we perform simulation results by using 
MATLAB software which demonstrated that the 
EE with much better performance.