Pilot Power Allocation for Enhancing Channel Estimation Quality in Multi-cell Multi-user Massive MIMO Systems

2019 ◽  
Author(s):  
Hieu Trong Dao ◽  
Sunghwan Kim
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Estimation Quality ◽  
Pilot Power

scholarly journals Pilot power allocation for maximising the sum rate in massive MIMO systems

2018 ◽  
Vol 12 (11) ◽  
pp. 1367-1372 ◽  
Author(s):  
Hieu Trong Dao ◽  
Sunghwan Kim
Keyword(s):  
Power Allocation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Sum Rate ◽  
Pilot Power

scholarly journals Pilot Power Allocation Through User Grouping in Multi-Cell Massive MIMO Systems

2017 ◽  
Vol 65 (4) ◽  
pp. 1561-1574 ◽  
Author(s):  
Pei Liu ◽  
Shi Jin ◽  
Tao Jiang ◽  
Qi Zhang ◽  
Michail Matthaiou
Keyword(s):  
Power Allocation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
User Grouping ◽  
Pilot Power

scholarly journals Low-complexity beam-domain channel estimation and power allocation in hybrid architecture massive MIMO systems

2019 ◽  
Vol 2019 (1) ◽  
Author(s):  
Xiao Chen ◽  
Zaichen Zhang ◽  
Liang Wu ◽  
Jian Dang
Keyword(s):  
Channel Estimation ◽  
Power Allocation ◽  
Spectral Efficiency ◽  
Communication Systems ◽  
Mimo Systems ◽  
Beam Steering ◽  
Estimation Method ◽  
Low Complexity ◽  
Estimation Accuracy ◽  
Hybrid Architecture

Abstract In this journal, we investigate the beam-domain channel estimation and power allocation in hybrid architecture massive multiple-input and multiple-output (MIMO) communication systems. First, we propose a low-complexity channel estimation method, which utilizes the beam steering vectors achieved from the direction-of-arrival (DOA) estimation and beam gains estimated by low-overhead pilots. Based on the estimated beam information, a purely analog precoding strategy is also designed. Then, the optimal power allocation among multiple beams is derived to maximize spectral efficiency. Finally, simulation results show that the proposed schemes can achieve high channel estimation accuracy and spectral efficiency.

Uplink Channel Estimation for Massive MIMO Systems with Impulsive Noise

2020 ◽  
pp. 1-1
Author(s):  
Lei Zhou ◽  
Jisheng Dai ◽  
Weichao Xu ◽  
Chunqi Chang
Keyword(s):  
Channel Estimation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Impulsive Noise
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