In this letter, a decode-and-forward cooperative underlay cognitive radio (CR) non- orthogonal multiple access (NOMA) network is studied. Exact closed-form expressions for …
Non-orthogonal multiple access (NOMA)-based cognitive radio (CR) networks have recently emerged as a promising solution to enhance the spectral efficiency and massive …
K Sultan - IEEE Access, 2020 - ieeexplore.ieee.org
Cognitive Radio and the emerging Non-Orthogonal Multiple Access (NOMA) techniques hold the potential to fulfill the increasing demands of radio spectrum by 5G-and-B5G …
DT Do, AT Le - Computer Communications, 2019 - Elsevier
This paper considers cognitive radio (CR) inspired non-orthogonal multiple-access (NOMA). Such NOMA users with performance improvement can be achieved as deploying relay …
In this paper, we study the outage probability (OP) of the cooperative underlay cognitive radio (CR) networks consisted of a secondary relay node and K non-orthogonal multiple …
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 …
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 paper, we investigate an underlay cognitive non-orthogonal multiple access (NOMA)- based coordinated direct and relay transmission network with imperfect successive …