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Paper Abstract and Keywords
Presentation 2020-09-24 13:50
[Poster Presentation] Analysis of LOS (Line-of-Sight) Probability in Simultaneous Connection of Multiple Base Stations.
Ryo Goto, Hisato Iwai, Shinsuke Ibi (Doshisha Univ.) AP2020-54
Abstract (in Japanese) (See Japanese page) 
(in English) In the next generation mobile communication such as the 5th generation system, high-frequency band such as millimeter waves is used for the purpose of ensuring wide frequency bandwidth in order to realize high speed and large capacity communications. However, the high frequency band suffers from large propagation loss between a transmitter and a receiver. To compensate the loss by directional gain of antennas, it is necessary to form a propagation path mainly by the direct wave. To realize stable communication using the high frequency band, it is necessary to understand the characteristics of LOS (Line-of-Sight) probability between a base station and a mobile station in system design of the mobile communication systems. In ITU-R, a LOS probability model for an isolated base station is shown. This is called the d1/d2 model, and the LOS probability of various environments can be expressed by changing the their values. However, in an actual mobile communication system, since it is a cellular environment in which multiple base stations are placed over the whole area, the LOS probability in a multiple base station environment is important. Furthermore, in recent years, multiple base station cooperative transmission technology has been adopted where multiple base stations collaboratively communicate to a single mobile station to improve the transmission performance, and the LOS probability characteristic for simultaneous connection to multiple base stations is becoming more important. Therefore, in this paper, based on the physical meaning of the d1/d2 model assuming a street canyon urban city model, we analyze the LOS probability characteristics in the multiple base station simultaneous connection environment by theoretical and simulation studies.
Keyword (in Japanese) (See Japanese page) 
(in English) Cellular communications / LOS probability / Multiple base stations / Simultaneous connection / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 171, AP2020-54, pp. 96-97, Sept. 2020.
Paper # AP2020-54 
Date of Issue 2020-09-17 (AP) 
ISSN Online edition: ISSN 2432-6380
Copyright
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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)
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Conference Information
Committee MW AP  
Conference Date 2020-09-24 - 2020-09-25 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Microwave, Millimeter wave, Antennas and Propagation 
Paper Information
Registration To AP 
Conference Code 2020-09-MW-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Analysis of LOS (Line-of-Sight) Probability in Simultaneous Connection of Multiple Base Stations. 
Sub Title (in English)  
Keyword(1) Cellular communications  
Keyword(2) LOS probability  
Keyword(3) Multiple base stations  
Keyword(4) Simultaneous connection  
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1st Author's Name Ryo Goto  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Hisato Iwai  
2nd Author's Affiliation Doshisha University (Doshisha Univ.)
3rd Author's Name Shinsuke Ibi  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
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Speaker Author-1 
Date Time 2020-09-24 13:50:00 
Presentation Time 60 minutes 
Registration for AP 
Paper # AP2020-54 
Volume (vol) vol.120 
Number (no) no.171 
Page pp.96-97 
#Pages
Date of Issue 2020-09-17 (AP) 


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