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Paper Abstract and Keywords
Presentation 2022-01-28 10:20
Channel capacity evaluation of LoS-MIMO antenna composed of GA
Riku Okada, Kentaro Nishimori, Takanobu Watanabe (Niigata Univ.) CQ2021-89
Abstract (in Japanese) (See Japanese page) 
(in English) Radio waves in the high frequency band used in 5G systems have a large propagation loss due to obstacles. Near the ground, due to the influence of the building, propagation loss occurs in proportion to the third to fourth power of the distance. However, in the sky, it can be kept within the square of the distance. Therefore, it has been proposed to use an unmanned aerial vehicle (UAV) as a radio relay station. In that case, in-line MIMO (LoS-MIMO) transmission is performed between UAVs. However, in LoS-MIMO transmission, the channel capacity decreases periodically according to the transmission distance. This is a problem between UAVs whose transmission distance is constantly changing. Therefore, in this research, we seek the optimum antenna element arrangement to mitigate the deterioration of characteristics. In other words, we propose an antenna element arrangement for LoS-MIMO that does not depend on the transmission distance. The device arrangement is derived by a genetic algorithm and compared with the conventional configuration. In addition, we will mount an antenna, conduct experiments, and evaluate it in a real environment.
Keyword (in Japanese) (See Japanese page) 
(in English) 5G / 6G / Circular antenna / Genetic algorithm / LoS-MIMO / Unmanned aerial vehicle / /  
Reference Info. IEICE Tech. Rep., vol. 121, no. 357, CQ2021-89, pp. 71-75, Jan. 2022.
Paper # CQ2021-89 
Date of Issue 2022-01-20 (CQ) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF CQ2021-89

Conference Information
Committee CQ CBE  
Conference Date 2022-01-27 - 2022-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa（Ishikawa Pref.） 
Topics (in Japanese) (See Japanese page) 
Topics (in English) AR/VR, Broadcasting Service, Video/Voice Services Quality, High Realistic, User Behavior/Psychology, User Experience, Media Quality, Network Quality and QoS Control, Networks and Communications at Disaster, User Behavior, Machine Learning, Video Communication, etc. 
Paper Information
Registration To CQ 
Conference Code 2022-01-CQ-CBE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Channel capacity evaluation of LoS-MIMO antenna composed of GA 
Sub Title (in English)  
Keyword(1) 5G  
Keyword(2) 6G  
Keyword(3) Circular antenna  
Keyword(4) Genetic algorithm  
Keyword(5) LoS-MIMO  
Keyword(6) Unmanned aerial vehicle  
Keyword(7)  
Keyword(8)  
1st Author's Name Riku Okada  
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 Takanobu Watanabe  
3rd Author's Affiliation Niigata University (Niigata Univ.)
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Speaker Author-1 
Date Time 2022-01-28 10:20:00 
Presentation Time 25 minutes 
Registration for CQ 
Paper # CQ2021-89 
Volume (vol) vol.121 
Number (no) no.357 
Page pp.71-75 
#Pages 5 
Date of Issue 2022-01-20 (CQ) 

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