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Paper Abstract and Keywords
Presentation 2021-10-29 10:30
[Poster Presentation] Adaptive In-band Distortion Compensation for Massive MIMO-OFDM Systems with Deep Peak Cancellation
HIroki Hase, Osamu Muta (Kyushu Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) In massive multi-input multi-output (mMIMO) orthogonal frequency division multiplexing (OFDM) systems, the reduction of the high peak-to-average power ratio (PAPR) is a challenging problem.
For mMIMO-OFDM systems, a peak canceller based PAPR reduction and its in-band distortion compensation technique utilizing the extra degree of freedom in mMIMO has been proposed, where error signal due to peak canceller is transmitted from extra antennas to receiver sides so that in-band distortion is automatically compensated at the receiver sides without any specific signal processing.
In this article, we investigate an adaptive in-band distortion compensation (AIDC) method for mMIMO-OFDM systems with deep PC, by selecting the number of extra antennas adaptively according to order modulations of each user and communication environments.
Specifically, we determine the number of extra antennas so that user sum-rate after in-band distortion compensation is maximized when each user selects the best order modulation.
Through simulation, we clarify that achieved data rate is improved by adaptively selecting the number of extra antennas for in-band distortion according to modulation order.
Keyword (in Japanese) (See Japanese page) 
(in English) Massive MIMO / OFDM / PAPR / peak cancellation / in-band distortion compensation / / /  
Reference Info. IEICE Tech. Rep.
Paper #  
Date of Issue  
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee MIKA  
Conference Date 2021-10-27 - 2021-10-29 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Wireless Communication Systems, etc. 
Paper Information
Registration To MIKA 
Conference Code 2021-10-MIKA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Adaptive In-band Distortion Compensation for Massive MIMO-OFDM Systems with Deep Peak Cancellation 
Sub Title (in English)  
Keyword(1) Massive MIMO  
Keyword(2) OFDM  
Keyword(3) PAPR  
Keyword(4) peak cancellation  
Keyword(5) in-band distortion compensation  
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1st Author's Name HIroki Hase  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Osamu Muta  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2021-10-29 10:30:00 
Presentation Time 60 minutes 
Registration for MIKA 
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