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Paper Abstract and Keywords
Presentation 2021-11-17 11:00
Relationship between Amplitude and Spatial Resolutions for Massive MIMO
Mana Yoshida, Daisuke Umehara (KIT)
Abstract (in Japanese) (See Japanese page) 
(in English) One of the major technologies for 5G mobile systems is massive multiple-input multiple-output (MIMO) system. In order to reduce power consumption, we analyze the effect of quantization errors when using low-resolution analog-to-digital converters (ADCs) in a massive MIMO system. The simulation results reveal that lower bit error rates (BERs) can be achieved by enhancing the number of receiving antennas than by increasing the number of quantization bits with accurate channel estimation information (CSI) when the total number of quantization bits is the same. We also clarify that it is necessary to calculate the channel bit log-likelihood ratios (LLRs) for the low-density parity-heck (LDPC) code taking the power of quantization errors into consideration.
Keyword (in Japanese) (See Japanese page) 
(in English) Massive MIMO / low-resolution ADC / amplitude resolution / spatial resolution / LDPC code / channel bit LLR / /  
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Conference Information
Committee RISING  
Conference Date 2021-11-15 - 2021-11-17 
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Paper Information
Registration To RISING 
Conference Code 2021-11-RISING 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Relationship between Amplitude and Spatial Resolutions for Massive MIMO 
Sub Title (in English)  
Keyword(1) Massive MIMO  
Keyword(2) low-resolution ADC  
Keyword(3) amplitude resolution  
Keyword(4) spatial resolution  
Keyword(5) LDPC code  
Keyword(6) channel bit LLR  
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1st Author's Name Mana Yoshida  
1st Author's Affiliation Kyoto Institute of Technology (KIT)
2nd Author's Name Daisuke Umehara  
2nd Author's Affiliation Kyoto Institute of Technology (KIT)
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Speaker Author-1 
Date Time 2021-11-17 11:00:00 
Presentation Time 50 minutes 
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