In this article, the performance of cognitive radio system benefits from non-orthogonal multiple access (NOMA) scheme. We then examine metrics to adjust its quality signal processing. focus on secondary network containing NOMA users which have some impacts normal user and primary nodes. refer enhancement fairness spectrum utilization by enabling sharing. particular, power allocation factors are...

Non-orthogonal multiple access (NOMA) is a technology that can provide efficient spectrum utilization and increased channel capacity on Internet of Things (IoT) networks. One factor affecting NOMA system performance in the IoT network allocation power for each user. To improve system, this paper presents method optimizing an with Lagrange multiplier using Karush-Kuhn-Tucker (KKT) condition. The...

The multiple access technique of the current wireless communication system depends on orthogonal (OMA) technique. availability resources is limited in OMA and cannot support increasing demand for a large number users efficient use spectrum coming years. Non-orthogonal (NOMA) considered future release 5G beyond 5G. In NOMA, can be dealt with same resource block at time, which allows NOMA to prov...

Yukiko Himeno, Futoshi Toyoda, Hiroyasu Satoh, Akira Amano, Chae Young Cha, Hiroshi Matsuura, and Akinori Noma Department of Diabetes and Clinical Nutrition, Faculty of Medicine, Kyoto University, Kyoto; Department of Physiology, Faculty of Medicine, Shiga University of Medical Science, Shiga; Department of Pharmacology, Faculty of Medicine, Nara Medical University, Nara; and Department of Bios...

Cooperative non-orthogonal multiple access (NOMA) is heavily studied in the literature as a solution for 5G and beyond applications. NOMA transmits superimposed version of all users’ messages simultaneously with aid relay, after that, each user decodes its own message. Accordingly, deemed spectral efficient technique. Another emerging technique exploits orbital angular momentum (OAM), where OAM...

Reconfigurable intelligent surfaces (RISs) and nonorthogonal multiple access (NOMA) have been recognized as key enabling techniques for the envisioned sixth generation (6G) of mobile communication networks. The feature RISs is to intelligently reconfigure wireless propagation environment, which was once considered be fixed untunable. idea NOMA utilize users’ dynamic channel conditions improve s...

Nonorthogonal multiple access (NOMA) is seen as an important technology for tomorrow's Internet-of-Things (IoT) systems. In uplink power-domain NOMA (PD-NOMA), allocating the transmit power of IoT devices to maximize both sum rate and reliability devices. However, it challenging optimize when received signal affected by a random fading channel. Hence, in this article, problem assignment studied...

BACKGROUND Ebiino, also known as false tooth extraction, is a traditional practice done mainly in the remote areas of African countries, including Uganda. It involves the extraction of tooth buds in babies with common childhood illnesses such as fever, cough, and diarrhea. It is thought that the tooth buds are responsible for the ailments seen in these infants. The practice is performed by trad...