Towards SE and EE in 5G with NOMA and Massive MIMO Technologies

TL;DR

This paper explores the integration of NOMA and massive MIMO technologies to improve spectrum efficiency and cell-edge capacity in 5G, introducing a new capacity expression and a practical interference management method.

Contribution

It provides a closed-form capacity expression for massive MIMO with NOMA and proposes a novel Power Hard Limiter method for enhanced interference management.

Findings

Derived a closed-form capacity expression for massive MIMO with NOMA.

Introduced the Power Hard Limiter as an alternative to SIC.

Demonstrated potential improvements in spectrum efficiency and cell-edge performance.

Abstract

Non-Orthogonal Multiple Access (NOMA) has been proposed to enhance the Spectrum Efficiency (SE) and cell-edge capacity. This paper considers the massive Multi-Input Multi-Output (MIMO) with Non-Orthogonal Multiple Access (NOMA) encoding. The close-form expression of capacity of the massive MIMO with NOMA is given here. Apart from the previous Successive Interference Cancellation (SIC) method, the Power Hard Limiter (PHD) is introduced here for better reality implement.