TY - JOUR
T1 - Reconfigurable Power Divider enabled Dynamic Hybrid m-MIMO Transmitter
AU - Xu, Kai
AU - Hou, Jiayu
AU - Wang, Li
AU - Sibio, Simona
AU - Thompson, John S.
AU - McLaughlin, Stephen
AU - Ding, Yuan
AU - Peters, Gunnar
PY - 2022
Y1 - 2022
N2 - A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.
AB - A promising solution for massive Multiple-Input Multiple-Output (m-MIMO) systems is Hybrid digital-analogue (HDA) beamforming as it offers a balanced trade-off between energy efficiency (EE) and spectral efficiency (SE). The lack of practical demonstrations in the open literature is primarily because those most existing works require a large number of phase shifters (PSs), radio frequency (RF) switches, power dividers (PDs), and power combiners which contribute to high hardware complexity and energy consumption (due to insertion loss). In this paper, we introduce a practical dynamic subarray m-MIMO structure that is based on reconfigurable power dividers (RPDs). The extensive system simulation results, considering hardware imperfection extracted from a practical RPD implementation, indicate that the proposed RPD-based dynamic HDA m-MIMO outperforms the fixed subarray counterpart.
U2 - 10.1109/ojcoms.2022.3226262
DO - 10.1109/ojcoms.2022.3226262
M3 - Article
SN - 2644-125X
VL - 3
SP - 2461
EP - 2471
JO - IEEE Open Journal of the Communications Society
JF - IEEE Open Journal of the Communications Society
ER -