scholarly journals Energy Efficiency of Uplink Massive MIMO Systems With Successive Interference Cancellation

2017 ◽  
Vol 21 (3) ◽  
pp. 668-671 ◽  
Author(s):  
Tianle Liu ◽  
Jun Tong ◽  
Qinghua Guo ◽  
Jiangtao Xi ◽  
Yanguang Yu ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Interference Cancellation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Successive Interference Cancellation

scholarly journals On the Energy Efficiency of Massive MIMO Systems With Low-Resolution ADCs and Lattice Reduction Aided Detectors

Symmetry ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 406 ◽  
Author(s):  
Zhitao Xiao ◽  
Jincan Zhao ◽  
Tianle Liu ◽  
Lei Geng ◽  
Fang Zhang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Power Consumption ◽  
Antenna Arrays ◽  
Interference Cancellation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Optimal Solution ◽  
Lattice Reduction ◽  
Low Resolution ◽  
Processing Efficiency

As an effective technology for boosting the performance of wireless communications, massive multiple-input multiple-output (MIMO) systems based on symmetric antenna arrays have been extensively studied. Using low-resolution analog-to-digital converters (ADCs) at the receiver can greatly reduce hardware costs and circuit complexity to further improve the energy efficiency (EE) of the system. There are significant research on the design of MIMO detectors but there is limited study on their performance in terms of EE. This paper studies the effect of signal detection on the EE in practical systems, and proposes to apply several signal detectors based on lattice reduction successive interference cancellation (LR-SIC) to massive MIMO systems with low-precision ADCs. We report results on their achievable EE in fading environments with typical modeling of the path loss and detailed analysis of the power consumption of the transceiver circuits. It is shown that the EE-optimal solution depends highly on the application scenarios, e.g., the number of antennas employed, the cell size, and the signal processing efficiency. Consequently, the signal detector must be properly selected according to the application scenario to maximize the system EE. In addition, medium-resolution ADCs should be selected to balance their own power consumption and the associated nonlinear distortion to maximize the EE of system.

scholarly journals Towards Optimal Energy Efficiency in Cell-Free Massive MIMO Systems

2021 ◽  
pp. 1-1
Author(s):  
A. Papazafeiropoulos ◽  
H. Q. Ngo ◽  
P. Kourtessis ◽  
S. Chatzinotas ◽  
J. M. Senior
Keyword(s):  
Energy Efficiency ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Optimal Energy
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