The future wireless networks need to improve spectrum and energy efficiency to satisfy the
increasing demand for high data rate. Device-to device (D2D) communications have the …

With the dramatic increase of connected devices, the Internet of things (IoT) paradigm has
become an important solution in supporting dense scenarios such as smart cities. The …

Virtual small cell (VSC) formed by directional beams is seen as an alternative for the small
base station (SBS) within the coverage of macro base station (MBS), to increase system …

In wireless and mobile communication, wireless spectrum is a limited and scarce resource.
Properly allocating spectrum resource to different users is an important goal to meet the …

Spectrum access and assignment in cognitive radio networks (CRNs) are hot topics in
wireless communications. Dynamic spectrum access and assignment could greatly improve …

Machine learning offers advanced tools for efficient management of radio resources in
modern wireless networks. In this study, we leverage a multi-agent deep reinforcement …

In recent years, wireless channel optimization technologies witnessed tremendous
improvements. In this regard, research for developing wireless spectrum for accommodating …

Massive multiple input multiple output (MIMO) has drawn intensive attention of researchers
for solving huge data transmissions in the fifth generation wireless communication …

A LTE-advanced heterogeneous network consists of many macrocells, and within each
macrocell, there can have many picocells and user equipments (UEs). A UE within a …

To efficiently reduce on-grid energy consumption, the base station (BS) sleeping strategy in
the hybrid energy-powered cellular network (HybE-Net) in the Internet of Things …