… propose to have a mixed user grouping NOMA system, which can obtain the optimal system
performance under different channel gain conditions. The mixed user grouping NOMA sys- …

… In this paper, we focus on the interference-aware user grouping strategy in NOMA systems,
… function for each user to represent the power consumption involved by this user to satisfy its …

… In this paper, we extend our work in [31] to multi-cell NOMA systems … user grouping problem
in a downlink multi-cell NOMA system, while most existing studies perform user grouping …

… After the user grouping strategy is obtained from Section IIV, in this section, we aim to solve
the beam selection problem. A number of works such as [30] and [31] choose the beams …

… Some user grouping strategies based on … user grouping in NOMA communication systems,
in this paper, we propose a novel generalized user grouping (GuG) concept for NOMA from …

… 2-user grouping strategy is applied in an NOMA system with 6 … user grouping in uplink NOMA
communication systems, in this paper, we propose a novel generalized user grouping (GuG…

… Under this perspective, this paper provides a state-of-art analysis of user-aggregation
strategies for PNOMA systems which, at the time of writing, represent the most relevant …

… 4Since we concentrate on the user grouping and resource allocation for mmWave-NOMA,
the channel estimation problem is beyond the scope of this paper. We assume that the …

… new user grouping method in PD-NOMA and NOMA-2000 over different Rayleigh fading
channels. NOMA… Jin, ‘‘A unified transmission strategy for TDD/FDD massive MIMO systems with …

… This paper first introduces the meaning of user grouping in the NOMA system, and then
introduces two user grouping schemes, random algorithm, and exhaustive algorithm. However, …