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Paper Abstract and Keywords
Presentation 2007-08-24 11:50
Evaluation of a replica distribution scheme for location-dependent information using information of neighboring hosts on vehicular ad hoc networks
Mariko Yamanaka, Susumu Ishihara (Shizuoka Univ.) AN2007-33
Abstract (in Japanese) (See Japanese page) 
(in English) When mobile hosts share data in ad hoc networks, it is difficult to utilize data on other hosts because connectivity between hosts is not guaranteed due to link disconnections caused by movements of hosts etc.
To mitigate this issue, some techniques for distributing replicas of data items to other hosts have been proposed.
We have proposed Road-aware Skip Copy (RSC) method, a replica distribution scheme on vehicular ad hoc networks.
In the RSC method, a vehicle distributes replilcas of data item at intersections in order to distribute replicas to many hosts with small number of broadcasts.
However, replica holders are selected according to the hop count from the original host which generated the data item.
Therefore, replicas of data items may not be distributed geographically evenly.
Moreover, the increase of the replica distribution traffic caused by distributing replicas of data items repeatedly by the vehicles which received the replica is an issue.
Therefore, we have proposed Road-aware Direction based replica distribution scheme (RD scheme) for determining the transmission hosts of replica with no duplication at intersections by using information of movement direction etc. of neighboring hosts.
In this paper, we evaluate the performance of the RD method by simulation.
The simulation results show that RD method leaves replicas of data item around the birth place of the data item with small number of broadcasts compared to the method that a host distribute replicas of data items whenever a new host appears.
Keyword (in Japanese) (See Japanese page) 
(in English) Vehicular Ad Hoc Network / location-dependent data / data sharing / Geocast / Replica distribution / Data accessibility / Intersection / Road Layout  
Reference Info. IEICE Tech. Rep., vol. 107, no. 193, AN2007-33, pp. 105-110, Aug. 2007.
Paper # AN2007-33 
Date of Issue 2007-08-16 (AN) 
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 AN2007-33

Conference Information
Committee RCS AN  
Conference Date 2007-08-23 - 2007-08-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Niigata University 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To AN 
Conference Code 2007-08-RCS-AN 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of a replica distribution scheme for location-dependent information using information of neighboring hosts on vehicular ad hoc networks 
Sub Title (in English)  
Keyword(1) Vehicular Ad Hoc Network  
Keyword(2) location-dependent data  
Keyword(3) data sharing  
Keyword(4) Geocast  
Keyword(5) Replica distribution  
Keyword(6) Data accessibility  
Keyword(7) Intersection  
Keyword(8) Road Layout  
1st Author's Name Mariko Yamanaka  
1st Author's Affiliation Shizuoka University (Shizuoka Univ.)
2nd Author's Name Susumu Ishihara  
2nd Author's Affiliation Shizuoka University (Shizuoka Univ.)
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Speaker Author-1 
Date Time 2007-08-24 11:50:00 
Presentation Time 20 minutes 
Registration for AN 
Paper # AN2007-33 
Volume (vol) vol.107 
Number (no) no.193 
Page pp.105-110 
#Pages 6 
Date of Issue 2007-08-16 (AN) 

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