For the past years, the analysts have been predicting a tremendous and continuous
increase in mobile traffic, causing much of industry and academia to seek out any and all …

While operators have finally started to deploy fourth generation broadband technology,
many believe it will still be insufficient to meet the anticipated demand in mobile traffic over …

Currently, cellular operators are struggling to relieve congestion on their networks in the face
of rapidly growing mobile data traffic. While deploying an increasing number of base stations …

In this article, we look into how the LTE network can efficiently evolve to cater for new data
services by utilizing direct communications between mobile devices and extending the direct …

This paper addresses two fundamental and interrelated issues in device-to-device (D2D)
enhanced cellular networks. The first issue is how D2D users should access spectrum, and …

This paper investigates how to enhance the energy and spectral efficiency (ESE)
performance of large-scale cellular networks by offloading mobile traffic with the aid of …

Small-cell architecture is widely adopted by cellular network operators to increase spectral
spatial efficiency. However, this approach suffers from low spectrum temporal efficiency …

Device-to-device (D2D) communication, which enables two closely located users to
communicate with each other without traversing the base station (BS), has become an …

Two of the emerging trends in wireless cellular systems are device-to-device (D2D) and
machine-to-machine (M2M) communications. D2D enables efficient reuse of the licensed …

Mobile data traffic has been experiencing a phenomenal rise in the past decade. This ever-
increasing data traffic puts significant pressure on the infrastructure of state-of-the-art cellular …