Recently, several multiple access (MA) have been proposed to support the massive
connectivity of the cognitive radio (CR) internet-of-things IoT-based networks. Among these …

Cognitive radio-based non-orthogonal multiple access (CR-NOMA) is considered to be one
of the promising multiple accessing technique candidates for 5G and beyond networks …

Due to rapid increase in the wireless‐connected Internet‐of‐things (IoT) devices, the
communication among devices is a critical task as it relies on the radio‐frequency spectrum …

In this paper, we investigate improved spectrum concern by employing non-orthogonal
multiple access (NOMA) scheme in cognitive radio (CR) network to form CR-NOMA and to …

With the exponential demand for frequency spectrum and the new generation of
communication systems (5G), efficient and less complex ways of using the spectrum are …

The integration of non-orthogonal multiple access (NOMA) technology and cognitive radio
networks (CRNs) promises to enhance the spectrum utilization efficiency of 5G and beyond …

The recent development of the Internet of Things (IoT) devices offers an intelligent concept
for integrating massive number of interconnected wireless devices. However, supporting …

With the rapid development of 5th generation (5G) communications, 5G-enabled Internet of
Things (IoT) will provide high-speed and low-latency data transmissions as well as better …

Non-orthogonal multiple access (NOMA) and cognitive radio (CR) are two promising
technologies that provide efficient spectrum utilization, which is required for future wireless …

One of the most challenging issues in non-orthogonal multiple access (NOMA) based
cognitive radio networks (CRNs) is the power allocation (PA) problem. Moreover, the quality …