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 …
Non-orthogonal multiple access (NOMA)-based cognitive radio (CR) networks have recently emerged as a promising solution to enhance the spectral efficiency and massive …
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 …
In this paper, nonorthogonal multiple access (NOMA) is applied to large-scale underlay cognitive radio (CR) networks with randomly deployed users. To characterize the …
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 …
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 …
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 …
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 …
Recently, the increasing demand of radio spectrum for the next generation communication systems due to the explosive growth of applications appetite for band-widths has led to the …