In conventional cognitive radio (CR), the users in secondary network (SN) can only access the idle spectrum when users in primary network (PN) are absent. This novel strategy …
In this paper, we investigate the performance of a secondary network in a cognitive radio network employing a non-orthogonal multiple access (NOMA) scheme to form a CR-NOMA …
In this article, we investigate the performance of spectrum sharing inunderlay cognitive radio (CR)-inspired nonorthogonal multiple access (NOMA) systems, at which a primary …
DT Do, AT Le, BM Lee - Electronics, 2019 - mdpi.com
This study considers the outage and throughput performance of downlink in the secondary network of cognitive radio assisted non-orthogonal multiple access (NOMA) systems. Both …
In this study, a cooperative non‐orthogonal multiple access (NOMA) scheme is investigated in an underlay cognitive radio network. With this aim, a number of secondary users are …
In this letter, a cooperative underlay cognitive non-orthogonal multiple access (NOMA)- based coordinated direct and relay transmission is investigated. Specifically, exact closed …
G Li, D Mishra, H Jiang - IEEE Transactions on Vehicular …, 2020 - ieeexplore.ieee.org
To further improve spectral efficiency, this paper considers a non-orthogonal multiple access (NOMA)-assisted overlay cognitive radio network consisting of a pair of primary users and a …
In this paper, we demonstrate that despite the power constraints on all transmit nodes caused by the interference temperature limit (ITL) imposed by the primary user, power …
Non-orthogonal multiple access (NOMA) is considered as one of the most promising technologies to handle the issue of spectrum scarcity in beyond fifth-generation (5G) …