Đánh giá hiệu năng của hệ thống Vô tuyến nhận thức dạng nền với điều chế thích nghi

Abstract

In this paper, we study adaptive modulation for cognitive underlay networks taking into account the interference link from the secondary transmitter to the primary receiver. We have proposed the mathematical analysis framework to derive the system performance in terms of outage probability, spectral efficiency and average bit error rate over Rayleigh fading channels. Monte-Carlo simulations based on Matlab have been performed to verify the correctness of the analysis as well as to show the advantages of the proposed system.