scholarly journals On the spectral efficiency maximization of nonregenerative cooperative MIMO communication systems

2010 ◽  
Author(s):  
Fabien Heliot ◽  
Reza Hoshyar ◽  
Rahim Tafazolli
Keyword(s):  
Spectral Efficiency ◽  
Communication Systems ◽  
Mimo Communication ◽  
Cooperative Mimo

scholarly journals Performance Gains From Cooperative MIMO Radar and MIMO Communication Systems

2019 ◽  
Vol 26 (1) ◽  
pp. 194-198 ◽  
Author(s):  
Qian He ◽  
Zhen Wang ◽  
Jianbin Hu ◽  
Rick S. Blum
Keyword(s):  
Communication Systems ◽  
Mimo Radar ◽  
Mimo Communication ◽  
Cooperative Mimo ◽  
Performance Gains

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.

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