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 …
This paper analyze a new cooperative hybrid underlay–overlay cognitive radio non- orthogonal multiple access (CHCR-NOMA) system, where a secondary source and a …
S Singh, M Bansal - Vehicular Communications, 2023 - Elsevier
In future wireless networks, the synergy of non-orthogonal multiple access (NOMA) and cognitive radio (CR) can provide higher spectral efficiency and increased data rate. In this …
L Luo, Q Li, J Cheng - IEEE Transactions on Communications, 2020 - ieeexplore.ieee.org
Non-orthogonal multiple access (NOMA) and cognitive radio (CR) are envisioned as promising solutions to achieve high spectral efficiency for future wireless networks. This …
This work presents a novel nonorthogonal multiple access (NOMA) cognitive radio (CR) system where the base station (BS) opportunistically multiplexes the secondary user (SU) …
In this study, the performance of a secondary network in cognitive radio (CR) is studied in the context of vehicle-to-everything (V2X). The non-orthogonal multiple access (NOMA) is …
This paper studies a new amplify-and-forward cooperative overlay cognitive radio (CR) non- orthogonal multiple access (AFCO-NOMA) system, where a primary network shares its …
Y Zhang, Y Dong, L Wang, J Liu… - … , Materials & Continua, 2019 - cdn.techscience.cn
In this paper, we propose a downlink cognitive non-orthogonal multiple access (NOMA) network, where the secondary users (SUs) operate in underlay mode. In the network …
X Liu, Y Wang, S Liu, J Meng - IEEE Access, 2018 - ieeexplore.ieee.org
In traditional cognitive radio (CR), secondary user (SU) can only access the idle spectrum when primary user (PU) is absent, which has to vacate the spectrum when detecting the …