Maximization of sum rate for Wireless Powered Communication Network with Intelligent Reflecting Surface and NOMA in the nonappearance of uplink and downlink beamforming matrix, subject to transmit power and time. - Affum Emmanuel Ampoma; Samuel Tweneboah-Koduah 002; Michael Kubi Appiah; Eric Gyamfi; Sunday Adeola Ajagbe; Owusu Agyeman Antwi; Matthew Adigun (Int. J. Commun. Syst., 2024)

IRS-Assisted Communication in Three-Dimensional Stochastic Geometry Channel Utilising Uniform Rectangular Array Transmitters with Hardware Defects. - Owusu Agyeman Antwi; Affum Emmanuel Ampoma; Samuel Tweneboah-Koduah 002; Maxwell Afriyie Oppong; Ruhyia Abubakar; Ofosu Willie (Wirel. Pers. Commun., 2025)