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Paper Abstract and Keywords
Presentation 2018-03-07 15:00
On the Range of Inter-Vehicle Communications Based on the “TsRm” Evaluation Method -- Considering Vehicles that Need to Communicate Each Other --
Shotaro Kondo, Takaaki Hasegawa (Saitama Univ.) ITS2017-84
Abstract (in Japanese) (See Japanese page) 
(in English) This paper examines the characteristics of the "$T$s$R$m evaluation method", which is generalized the "2s5m evaluation method" that uses the vehicles whose center position is within 5 m within 2 seconds as the evaluation target vehicles, by introducing "corresponding vehicle rate" which is the ratio of the number of vehicles to be evaluated to the number of vehicles in the entire evaluation area in the ITS communications for safety purposes, and clarifies that the optimum communication range exists from the evaluation of V2V communications using this evaluation method.
First, the influence of the range of the collision determination time and the collision determination distance, which is a parameter of the "$T$s$R$m evaluation method", on the corresponding vehicle ratio is studied.
Under the conditions of this research, in the case of the "2s5m evaluation method", it is shown that the number of vehicles to be evaluated is about 7% of the number of vehicles in the whole area evaluation widely used as the conventional evaluation index of ITS communications.
Next, under the same condition, the optimum communication range of V2V communications where the ratio of receive information necessary becomes the maximum is 20m in the case of "2s5m evaluation method" and 200m in the case of the conventional whole area evaluation.
The optimum communication range of the V2V communications determined by the "$T$s$R$m evaluation method" is significantly small; this means that the frequency utilization efficiency is high.
Finally, from these results, it is concluded that it is important to appropriately evaluate the V2V communications with the aim of safety in a limited band.
Keyword (in Japanese) (See Japanese page) 
(in English) ITS Information Communication Method / Inter-Vehicle Communication / Communication Evaluation Method / $T$s$R$m Evaluation Method / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 478, ITS2017-84, pp. 17-22, March 2018.
Paper # ITS2017-84 
Date of Issue 2018-02-28 (ITS) 
ISSN Print edition: ISSN 0913-5685    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 ITS2017-84

Conference Information
Committee ITS IEE-ITS  
Conference Date 2018-03-07 - 2018-03-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Kyoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Information Processing for ITS, etc. 
Paper Information
Registration To ITS 
Conference Code 2018-03-ITS-ITS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On the Range of Inter-Vehicle Communications Based on the “TsRm” Evaluation Method 
Sub Title (in English) Considering Vehicles that Need to Communicate Each Other 
Keyword(1) ITS Information Communication Method  
Keyword(2) Inter-Vehicle Communication  
Keyword(3) Communication Evaluation Method  
Keyword(4) $T$s$R$m Evaluation Method  
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1st Author's Name Shotaro Kondo  
1st Author's Affiliation Saitama University (Saitama Univ.)
2nd Author's Name Takaaki Hasegawa  
2nd Author's Affiliation Saitama University (Saitama Univ.)
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Speaker Author-1 
Date Time 2018-03-07 15:00:00 
Presentation Time 25 minutes 
Registration for ITS 
Paper # ITS2017-84 
Volume (vol) vol.117 
Number (no) no.478 
Page pp.17-22 
#Pages 6 
Date of Issue 2018-02-28 (ITS) 

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