In traditional cognitive radio (CR), secondary user (SU) can only access the idle spectrum
when primary user (PU) is absent, which has to vacate the spectrum when detecting the …

In a conventional cognitive radio (CR) network, only when the primary user's (PU) frequency
bands are sensed to be free, secondary users (SUs) can utilize these frequency band …

Non-orthogonal multiple access (NOMA) is considered to be one of the promising multiple
access (MA) techniques for 5G networks that can provide low latency, high system …

In this letter, we investigate the performance of an overlay cognitive satellite-terrestrial
network comprising a primary satellite source with its multiple terrestrial receivers and a …

In this paper, we derive the throughput of non-orthogonal multiple access NOMA with
adaptive transmit power for cognitive radio networks (CRN). The secondary source and …

This paper investigates an amplify-and-forward (AF) relaying assisted non-orthogonal
multiple access (NOMA) system over Nakagami-m fading channels, where both imperfect …

Non-orthogonal multiple access (NOMA) system can meet the demands of ultra-high data
rate, ultra-low latency, ultra-high reliability and massive connectivity of user devices (UE) …

Aiming for ultra-reliable low-latency wireless communications required in industrial internet
of things (IIoT) applications, this paper studies a simple cognitive radio non-orthogonal …

This paper proposes a novel non-orthogonal multiple access (NOMA)-based cooperative
transmission scheme for a spectrum-sharing cognitive radio network (CRN), whereby a …

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 …