The Internet of Things (IoT) is a huge network consisting of various information-sensing
devices combined with the Internet. The IoT aims to connect all things with the network to …

Due to the impact of amplifier nonlinearities and phase noise, practical transceivers in
heterogeneous networks (HetNets) suffer different degrees of hardware impairments (HWIs) …

The need for high-speed data connection has significantly strained Mobile Network
Operators (MNOs) due to an exponential increase in traffic. Numerous innovative …

In order to solve the energy efficiency optimization problem in the uplink multi-cell massive
MIMO system, this paper constructs the system transmission model, of which the channel is …

Radio-frequency (RF) wireless energy transfer (WET) is a key technology that may allow
seamlessly powering future massive low-energy Internet of Things (IoT) networks. To enable …

The massive multiple input multiple output (mMIMO) provides reliable base station (BS) for
the mobile users (MUs) with CSI (channel state information) and jointly offers spectral …

In this paper, we consider the sum rate maximization problem of uplink non-orthogonal
multiple access (NOMA) system with unmanned aerial vehicle (UAV)-enabled wireless …

Energy efficiency (EE) is one of the most important challenges in fifth generation
telecommunication systems. One of the ways to solve this challenge is to allocate the …

A potential way to handle the future requirements of wireless data traffic is the Massive
Multiple Input Multiple Output (MIMO) antenna systems. The most effective method to satisfy …

In the massive multiple-input multiple-output (MIMO) systems, pilot contamination and signal
perturbation are two important issues in the semi-blind channel estimation methods. To …