TY - GEN
T1 - NOMA/OMA Mode Selection-Based Cell-Free Massive MIMO
AU - Bashar, Manijeh
AU - Cumanan, Kanapathippillai
AU - Burr, Alister G.
AU - Ngo, Hien Quoc
AU - Hanzo, Lajos
AU - Xiao, Pei
PY - 2019/7/15
Y1 - 2019/7/15
N2 - In this paper, non-orthogonal-multiple-access (NOMA)-based cell-free massive multiple-input multiple-output (MIMO) is investigated, where the users are grouped into multiple clusters. Exploiting conjugate beamforming, the bandwidth efficiency (BE) of the system is derived while the assumption that the users performing realistic successive interference cancellation (SIC) based on only the knowledge of channel statistics. The max-min fairness problem of maximizing the lowest user BE is investigated and an iterative bisection method is developed to determine the optimal solution to the max-min BE problem. Numerical results are presented for validating the proposed design's performance, and a mode switching scheme is conceived for selecting a specific Mode = {OMA, NOMA} that maximizes the system's BE.
AB - In this paper, non-orthogonal-multiple-access (NOMA)-based cell-free massive multiple-input multiple-output (MIMO) is investigated, where the users are grouped into multiple clusters. Exploiting conjugate beamforming, the bandwidth efficiency (BE) of the system is derived while the assumption that the users performing realistic successive interference cancellation (SIC) based on only the knowledge of channel statistics. The max-min fairness problem of maximizing the lowest user BE is investigated and an iterative bisection method is developed to determine the optimal solution to the max-min BE problem. Numerical results are presented for validating the proposed design's performance, and a mode switching scheme is conceived for selecting a specific Mode = {OMA, NOMA} that maximizes the system's BE.
U2 - 10.1109/ICC.2019.8761072
DO - 10.1109/ICC.2019.8761072
M3 - Conference contribution
T3 - IEEE International Conference on Communications (ICC): Proceedings
BT - 2019 IEEE International Conference on Communications (ICC 2019): Proceedings
PB - IEEE
ER -