Unnamed aerial vehicles (UAVs) or drones have attracted growing interest in the last few
years for multiple applications; thanks to their advantages in terms of mobility, easy …

The proliferation of mobile users with an attendant rise in energy consumption mainly at the
base station has requested new ways of achieving energy efficiency in cellular networks …

Small cell networks have recently been proposed as an important evolution path for the next-
generation cellular networks. However, with more and more irregularly deployed base …

Caching popular contents at base stations (BSs) can reduce the backhaul cost and improve
the network throughput. Yet whether locally caching at the BSs can improve the energy …

By fully exploiting the cooperative communication capacities among mobile terminals (MTs),
the MTs can adapt the offloading designs well to the practical network with dynamic features …

This paper investigates the joint power allocation and user association problem in multi-cell
Massive MIMO (multiple-input multiple-output) downlink (DL) systems. The target is to …

To improve the cellular energy efficiency, without sacrificing quality-of-service (QoS) at the
users, the network topology must be densified to enable higher spatial reuse. We analyze a …

Assume that a multi-user multiple-input multiple-output (MIMO) communication system must
be designed to cover a given area with maximal energy efficiency (bits/Joule). What are the …

Nowadays energy crisis and global warming problems are hanging over everyone's head,
urging much research work on energy saving. In the ICT industry, which is becoming a major …

With small cell base stations (SBSs) densely deployed in addition to conventional macro
base stations (MBSs), the heterogeneous cellular network (HCN) architecture can effectively …