Особливості та принцип формування сигналу неортогонального множинного доступу в системах мобільного зв’язку 5G

Abstract

With the evolution of 5G mobile systems, innovative techniques are essential to meet growing spectral efficiency demands. This paper explores Non-Orthogonal Multiple Access (NOMA), a key technology in 5G advancements. Unlike traditional Orthogonal Multiple Access (OMA), where distinct resources prevent interference, NOMA lets multiple users share the same resources. Central to NOMA is "superposition coding," which allows user signal superimposition in the power domain. This approach, emphasizing non-orthogonality, promises to boost spectral efficiency. Through a detailed examination of NOMA's principles and examples, this study offers insights into its potential impact on next-gen mobile communications.