… In order to reach a predefined sum capacity (spectral efficiency) target, we study two … term
evolution (LTE) and its evolution towards LTE-Advanced. He was also deeply involved in the …

… the proposed approach achieved significant performance … Key words: Cognitive radio,
device-to-device communication, … “Device-to-device communication in LTE-Advanced networks…

… a cost-effective means of achieving enhanced radio resource utilization in the cellular network.
However, the … systems, and machine-to-machine and device-to-device communication. …

… can realize the potential diversity gain by sharing antennas across the different … gain for
single-antenna end users to improve the energy efficiency of outdoor-to-indoor communications. …

… crucial issues in Device-to-Device (D2D) communication with its … , to achieve data security
in D2D communication. Specifically, … network security and Device-to-Device communication. …

… the network operators in offloading the traffic, Device-to-Device (D2D) communication in
cellular networks … with each other to achieve efficient D2D communications. In a mobile social …

… Power control is vital in achieving efficient energy usage and interference coordination in …
Heterogeneity is expected to be a key feature in LTE-Advanced networks. Efficient resource …

… gains can be achieved if more communication modes are available. … as an underlay to
LTE-Advanced networks,” IEEE Commun. … efficient design and device-to-device communications. …

… underlay communication applied to LTE-Advanced networks … As we restrict the spectral
efficiency R to be with respect to … that our resource sharing method provide gain over the pathloss…

… communication to increase spectral efficiency and enhance system … To achieve this aim,
when we consider the optimal BS … deviceto-device communications in LTE-advanced networks,…