  Downlink/Uplink decoupling (DUDe) in LTE net- works has caught the attention
of researchers as it provides better uplink SINR and reduced power consumption
per device due to decoupled connection of a device with the Macro (in downlink)
and a small cell (in uplink). These characteristics of DUDe can be exploited to
encourage more D2D communications in the network. This paper first proposes a
model to estimate decoupling region within which a device is allowed to perform
DUDe. Then, it formulates an equation to calculate the total power saved by
devices due to decoupling. Finally, the extra area due to decoupling which can
be used to enable D2D pairs is calculated. Simulation results are shown based
on different simulation scenarios for different objectives for better
understanding the idea proposed.
