G Im, JH Lee - IEEE Communications Letters, 2019 - ieeexplore.ieee.org
In this letter, a cooperative non-orthogonal multiple access system with imperfect successive interference cancellation is investigated in an underlay cognitive radio network. Considering …
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 …
Z Song, X Wang, Y Liu, Z Zhang - IEEE access, 2019 - ieeexplore.ieee.org
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 as one of the most promising technologies to handle the issue of spectrum scarcity in beyond fifth-generation (5G) …
Non-orthogonal multiple access (NOMA)-based cognitive radio (CR) networks have recently emerged as a promising solution to enhance the spectral efficiency and massive …
V Aswathi, AV Babu - IEEE Transactions on Vehicular …, 2021 - ieeexplore.ieee.org
This paper investigates outage and throughput performance of non-orthogonal multiple access (NOMA) based underlay cognitive radio (ie, CR-NOMA) network under partial relay …
In this paper, we investigate an underlay cognitive non-orthogonal multiple access (NOMA)- based coordinated direct and relay transmission network with imperfect successive …
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 …
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 …