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Paper Abstract and Keywords
Presentation 2021-03-05 11:00
Effect of Beamforming and Vehicle Material on Communication Quality in In-Vehicle Wireless Communication with IEEE802.11ad
Takumi Shiohara (Nagoya Univ.), Takayuki Nishio (Tokyo Tech.), Tutomu Murase (Nagoya Univ.) IN2020-79
Abstract (in Japanese) (See Japanese page) 
(in English) The effect of interference on in-vehicle wireless LAN communication with IEEE 802.11ad (hereinafter 802.11ad) for in-vehicle wireless harness is investigated in communication quality. Two cases of interferences regarding both with beamforming signal strength and with penetration intensity of vehicle body materials from surrounded vehicles are considered in the evaluation. This is because communication delay, which is determined by the number of retransmissions and backoff time, increases when the amount of such interference increases. Beamforming strengthens radio wave in a specific direction which an antenna is facing. Therefore, if beams from out of vehicle face own vehicle, interference strength is strong and communication quality decreases. FRP (Fiber Reinforced Plastics), which is recently using for a vehicle body, can penetrate the radio wave more than metal. In order to understand the impact of these factors of interference variation on communication quality, we evaluated communication quality using a model in which vehicles are densely put and cause severe interference.
Keyword (in Japanese) (See Japanese page) 
(in English) IEEE802.11ad / Wireless Harness / In-Vehicle Communication / Beamforming / Interference / Delay / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 414, IN2020-79, pp. 150-155, March 2021.
Paper # IN2020-79 
Date of Issue 2021-02-25 (IN) 
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)
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Conference Information
Committee IN NS  
Conference Date 2021-03-04 - 2021-03-05 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To IN 
Conference Code 2021-03-IN-NS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effect of Beamforming and Vehicle Material on Communication Quality in In-Vehicle Wireless Communication with IEEE802.11ad 
Sub Title (in English)  
Keyword(1) IEEE802.11ad  
Keyword(2) Wireless Harness  
Keyword(3) In-Vehicle Communication  
Keyword(4) Beamforming  
Keyword(5) Interference  
Keyword(6) Delay  
Keyword(7)  
Keyword(8)  
1st Author's Name Takumi Shiohara  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takayuki Nishio  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech.)
3rd Author's Name Tutomu Murase  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2021-03-05 11:00:00 
Presentation Time 20 minutes 
Registration for IN 
Paper # IN2020-79 
Volume (vol) vol.120 
Number (no) no.414 
Page pp.150-155 
#Pages 6 
Date of Issue 2021-02-25 (IN) 

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