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 …
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 …
S Li, W Liang, Q Xu, N Yang, K Jia - IET Communications, 2022 - Wiley Online Library
In non‐orthogonal multiple access (NOMA) systems, it may not be advisable to send the superimposed signal of all users to individual users with retransmission requirements during …
R Liu, K Guo, K An, S Zhu… - IEEE Wireless …, 2021 - ieeexplore.ieee.org
With the increasing requirements for efficient utilization of satellite resources, both non- orthogonal multiple access (NOMA) scheme and cognitive radio (CR) have been recognized …
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 letter, a decode-and-forward cooperative underlay cognitive radio (CR) non- orthogonal multiple access (NOMA) network is studied. Exact closed-form expressions for …
DT Do, CB Le, AT Le - … Computing Electronics and Control), 2019 - telkomnika.uad.ac.id
In this paper, a downlink scenario of a non-orthogonal multiple access (NOMA) scheme with power constraint via spectrum sensing is considered. Such network provides improved …
H Liu, Z Bai, H Lei, G Pan, KJ Kim… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In uplink non-orthogonal multiple access (NOMA) channels, the existing cooperative successive interference cancellation (SIC) and power control (PC) schemes lack the …
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 …