In this paper, we studied the power allocation (PA) of Non-orthogonal multiple access (NOMA) for secondary users (SUs) in a Cognitive Radio Network (CRN).

The main contribution of this work is to increase the spectral efficiency of the secondary network. (CRN), through the use of the NOMA technique. In addition,.

The numerical results show that the proposed scheme outperforms other conventional schemes (OMA-OFDM, Cooperative OMA and OMA-TDMA schemes) in terms of ...

Aug 2, 2023 · A Cognitive radio NOMA extensively improves network capacity by utilising the same frequency bandwidth distinguished by power allocation. This ...

The performance of the cognitive non-orthogonal multiple access (NOMA) systems with random locations is examined in the present paper.

This article studies the performance of a space-time block code-aided overlay cognitive NOMA system based on Alamouti's (2 x 1, multiple-input single-output) ...

This paper emphasizes on practical implementation of NOMA in cognitive radio networks to enhance the spectral efficiency.

Nov 5, 2021 · This paper considers a non-orthogonal multiple access (NOMA)–based cognitive radio network, with the assistance of a wireless-powered relay station (RS),

Two physical-layer network coding strategies are proposed to improve the security performance of cognitive non-orthogonal multiple access networks.

Apr 26, 2023 · In this paper, a robust adaptive target power allocation strategy for cognitive nonorthogonal multiple access (NOMA) networks is proposed, which ...