Analysis of spectral efficiency for OFDM cooperative cognitive networks with non‐linear relay

• Published in: IET communications Vol. 15; no. 9; pp. 1174 - 1186
• Main Authors: Hadavi, Samira, Hosseini, Seyyed Saleh, Talebi, Siamak
• Format: Journal Article
• Language: English
• Published: Stevenage John Wiley & Sons, Inc 01.06.2021; Wiley
• Subjects: Amplifiers; Efficiency; Electromagnetic compatibility and interference; Fourier transforms; Modulation and coding methods; Optimization; Orthogonal Frequency Division Multiplexing; Power amplifiers; Power spectral density; Radio links and equipment; Relay; Spectrum allocation; Subcarriers

This paper analyzes the downlink achievable spectral efficiency of an orthogonal frequency‐division multiplexing (OFDM) cooperative cognitive network with a non‐linear relay. The analysis is carried out subject to the power amplifier's (PA) non‐linear effect on the relay node which operates in...