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Paper Abstract and Keywords
Presentation 2019-11-26 14:10
[Poster Presentation] [MIKA/RISING Collaboration] Study on DoA estimation in the 19GHz band using the results of the outdoor experiment and Ray Tracing
Saki Uemura, Kentaro Nishimori, Ryotaro Taniguchi (Niigata Univ.), Minoru Inomata, Koshiro Kitao (NTT DOCOMO)
Abstract (in Japanese) (See Japanese page) 
(in English) Use of the 5-generation mobile communication system (5G) in the millimeter wave band is assumed. In 5G, introduction of Massive MIMO is being considered. Massive MIMO can realize beamforming according to the position of the terminal in the environment with large propagation loss such as millimeter wave. Therefore, it is important to understand the direction of arrival in the millimeter wave band. In this report, we clarify the relationship between power, delay time, and direction of arrival when focusing on the horizontal direction by using a Massive array of 192 elements in 19 GHz band in the urban area of Niigata City. Moreover, the estimation result of the direction of arrival by Beam Former method is shown, and also the propagation environment characteristic in 19GHz band is considered by adding the result shown by the ray trace. In the circular array, it is also shown that the main ray is received in a narrow angular range, and the arrival direction estimation result by BF shows that the number of clusters is at most about 2 to 3 in millimeter wave.
Keyword (in Japanese) (See Japanese page) 
(in English) Millimeter wave / Massive MIMO / direction of arrival estimation / Beam Former / ray tracing / / /  
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 RISING  
Conference Date 2019-11-26 - 2019-11-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Fukutake Learning Theater, Hongo Campus, Univ. Tokyo 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Researches on Super-Intelligent Networking, etc. 
Paper Information
Registration To RISING 
Conference Code 2019-11-RISING 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) [MIKA/RISING Collaboration] Study on DoA estimation in the 19GHz band using the results of the outdoor experiment and Ray Tracing 
Sub Title (in English)  
Keyword(1) Millimeter wave  
Keyword(2) Massive MIMO  
Keyword(3) direction of arrival estimation  
Keyword(4) Beam Former  
Keyword(5) ray tracing  
1st Author's Name Saki Uemura  
1st Author's Affiliation Niigata University (Niigata Univ.)
2nd Author's Name Kentaro Nishimori  
2nd Author's Affiliation Niigata University (Niigata Univ.)
3rd Author's Name Ryotaro Taniguchi  
3rd Author's Affiliation Niigata University (Niigata Univ.)
4th Author's Name Minoru Inomata  
4th Author's Affiliation NTT DOCOMO INC. (NTT DOCOMO)
5th Author's Name Koshiro Kitao  
5th Author's Affiliation NTT DOCOMO INC. (NTT DOCOMO)
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Date Time 2019-11-26 14:10:00 
Presentation Time 50 
Registration for RISING 
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