Theoretical analysis of base station cooperation MIMO channel by using eigenvalue theory of wishart matrix

2010 ◽  
Author(s):  
Maki Arai ◽  
Kei Sakaguchi ◽  
Kiyomichi Araki ◽  
Takayuki Sotoyama
Keyword(s):  
Theoretical Analysis ◽  
Base Station ◽  
Mimo Channel ◽  
Wishart Matrix ◽  
Base Station Cooperation

scholarly journals Data Detection in Single User Massive MIMO Using Re-Transmissions

2019 ◽  
Vol 6 (1) ◽  
pp. 15-26 ◽  
Author(s):  
K. Vasudevan ◽  
K. Madhu ◽  
Shivani Singh
Keyword(s):  
Massive Mimo ◽  
Turbo Code ◽  
Additive White Gaussian Noise ◽  
Multiple Input Multiple Output ◽  
Low Complexity ◽  
Base Station ◽  
Mimo Channel ◽  
Data Detection ◽  
Major Drawback ◽  
Single User

Background:Single user Massive Multiple Input Multiple Output (MIMO) can be used to increase the spectral efficiency since the data is transmitted simultaneously from a large number of antennas located at both the base station and mobile. It is feasible to have a large number of antennas in the mobile, in the millimeter wave frequencies. However, the major drawback of single user massive MIMO is the high complexity of data recovery at the receiver.Methods:In this work, we propose a low complexity method of data detection with the help of re-transmissions. A turbo code is used to improve the Bit-Error-Rate (BER).Results and Conclusion:Simulation results indicate a significant improvement in BER with just two re-transmissions as compared to the single transmission case. We also show that the minimum average SNR per bit required for error-free propagation over a massive MIMO channel with re-transmissions is identical to that of the Additive White Gaussian Noise (AWGN) channel, which is equal to -1.6 dB.

Millimeter-Wave Base Station Cooperation Technologies for High-Mobility Environments

2021 ◽  
Author(s):  
Tatsuki Okuyama ◽  
Satoshi Suyama ◽  
Nobuhide Nonaka ◽  
Takahiro Asai
Keyword(s):  
Millimeter Wave ◽  
High Mobility ◽  
Base Station ◽  
Base Station Cooperation
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