Power allocation technique with soft performance guarantees in hybrid OFDMA-NOMA cognitive radio systems: Modeling and simulation. - Haythem Bany Salameh; Reem Tashtoush; Haitham Moffaqq Al-Obiedollah; Ahmad F. Al-Ajlouni; Yaser Jararweh (Simul. Model. Pract. Theory, 2021)