High spectral and energy efficiencies are vital for the implementation of smart cities. To this
end, this article investigates the performance of an amplify-and-forward (AF) relay-aided …

In this paper, we propose short-packet communications (SPCs) with non-orthogonal multiple
access (NOMA) for coordinated and direct relay transmission (CDRT) Internet-of-Things …

Non-orthogonal multiple-access (NOMA) has recently been proposed to improve throughput
and spectrum-efficiency of 5G cellular networks and beyond. It is also a key enabler for ultra …

For future wireless communication networks to be highly efficient with both spectrum and
energy, reconfigurable intelligent surface (RIS) has emerged as a practical technology. In …

Internet-of-Things (IoT) networks have recently emerged to provide massive connectivity for
many application scenarios and services. Additionally, developing spectrum-access …

Energy harvesting with cognitive radio and nonorthogonal multiple access (NOMA)
techniques offer a promising solution to enhance the spectral and energy efficiency in …

Energy and spectral efficiency of Internet of Things (IoT) networks can be improved by
integrating energy harvesting (EH), cognitive radio, and nonorthogonal multiple access …

We propose a spectrally efficient uplink cooperative relaying protocol with multiple half-
duplex relay stations (RNs) for wireless Internet of Things (IoT) networks, where two IoT …

This letter studies an Internet-of-Things (IoT)-based coordinated direct and relay
transmission (CDRT) adopting non-orthogonal multiple access (NOMA), where an …

In this letter, we propose an energy harvesting (EH) based incremental relaying cooperative
non-orthogonal multiple access (IR-EH-NOMA) protocol, considering two user downlink …