Low Complexity Zero Forcing Detector Based on Newton-Schultz Iterative Algorithm for Massive MIMO Systems

2018 ◽  
Vol 67 (12) ◽  
pp. 11759-11766 ◽  
Author(s):  
Juan Minango ◽  
Celso de Almeida
Keyword(s):  
Iterative Algorithm ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Low Complexity ◽  
Zero Forcing

scholarly journals Low-Complexity Multi-User Parameterized Beamforming in Massive MIMO Systems

Electronics ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 882 ◽  
Author(s):  
Geon-Woong Jung ◽  
Yong-Hwan Lee
Keyword(s):  
Computer Simulation ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Low Complexity ◽  
Beam Direction ◽  
Transmission Scheme ◽  
Zero Forcing ◽  
Combined Use ◽  
Ratio Transmission ◽  
Maximum Ratio Transmission

In this paper, we design a complexity-reduced transmission scheme in massive antenna environments. To reduce the implementation complexity for the generation of beam weight, we design a multi-user parameterized beamforming (MUPB) scheme that can control the beam direction using a single parameter with combined use of maximum ratio transmission and partial zero-forcing scheme that partially nulls out interference. We design the MUPB to maximize the signal-to-leakage plus noise ratio (SLNR). To further reduce the implementation complexity, we optimize the MUPB based on approximated SLNR instead of accurate SLNR. Finally, the performance of the proposed MUPB is verified by computer simulation.

A Low-Complexity Joint User Activity, Channel and Data Estimation for Grant-Free Massive MIMO Systems

2020 ◽  
Vol 27 ◽  
pp. 1290-1294
Author(s):  
Qiuyun Zou ◽  
Haochuan Zhang ◽  
Donghong Cai ◽  
Hongwen Yang
Keyword(s):  
Massive Mimo ◽  
Mimo Systems ◽  
Low Complexity ◽  
User Activity ◽  
Data Estimation

Securing Massive MIMO Systems: Secrecy for Free with Low-Complexity Architectures

2021 ◽  
pp. 1-1
Author(s):  
Ali Bereyhi ◽  
Saba Asaad ◽  
Ralf R. Muller ◽  
Rafael F. Schaefer ◽  
Georg Fischer ◽  
...  
Keyword(s):  
Massive Mimo ◽  
Mimo Systems ◽  
Low Complexity

scholarly journals A Low Complexity Precoding Algorithm Based on Parallel Conjugate Gradient for Massive MIMO Systems

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 54010-54017 ◽  
Author(s):  
Geng Chen ◽  
Qingtian Zeng ◽  
Xiaomei Xue ◽  
ZhengQuan Li
Keyword(s):  
Conjugate Gradient ◽  
Massive Mimo ◽  
Mimo Systems ◽  
Low Complexity
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