Paper Abstract and Keywords |
Presentation |
2017-10-27 15:50
Exploration of dynamic tori by mobile agents Tsuyoshi Gotoh, Yuichi Sudo (Osaka Univ), Fukuhito Ooshita (NAIST), Hirotsugu Kakugawa, Toshimitsu Masuzawa (Osaka Univ) COMP2017-25 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Mobile agents (agents) are entities which can move autonomously in a networked system and execute actions at nodes they are visiting. One of the most fundamental problems of agents is exploration, which requires that each node should be visited by at least one agent. So far, researchers focus mainly on exploration of static networks. However, exploration of dynamic networks comes to be studied recently. In this paper, we consider exploration of a dynamic torus under some constraints on the dynamics (or topology changes). An $n times n$ torus is considered as a collection of $n$ row rings and $n$ column rings. The constraints on the dynamics is that each the ring should be 1-interval connected, which allows at most one link is missing at any time in each the ring. On this $n times n$ dynamic torus, we propose exploration algorithms with and without the link presence detection. With the
link presence detection, an agent can detect which incident links are missing (if exist) before determining its next move. On the other hand, without the link presence detection, an agent has to determine its next move without knowing which incident links are missing, which makes the agent stay on the same node when the link necessary to the move is missing. We prove for exploration of the $n times n$ dynamic torus that, without the link presence detection, $n + 1$ agents are necessary and sufficient, and, with the link presence detection, $lceil n/2 rceil + 1$ agents are necessary and
sufficient. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
exploration / dynamic network / dynamic torus / 1-interval connected graph / link presence detection / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 269, COMP2017-25, pp. 37-44, Oct. 2017. |
Paper # |
COMP2017-25 |
Date of Issue |
2017-10-20 (COMP) |
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) |
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COMP2017-25 |
Conference Information |
Committee |
COMP |
Conference Date |
2017-10-27 - 2017-10-27 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
COMP |
Conference Code |
2017-10-COMP |
Language |
English (Japanese title is available) |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Exploration of dynamic tori by mobile agents |
Sub Title (in English) |
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Keyword(1) |
exploration |
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dynamic network |
Keyword(3) |
dynamic torus |
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1-interval connected graph |
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link presence detection |
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1st Author's Name |
Tsuyoshi Gotoh |
1st Author's Affiliation |
Osaka University (Osaka Univ) |
2nd Author's Name |
Yuichi Sudo |
2nd Author's Affiliation |
Osaka University (Osaka Univ) |
3rd Author's Name |
Fukuhito Ooshita |
3rd Author's Affiliation |
NARA INSTITUTE of SCIENCE and TECHNOLOGY (NAIST) |
4th Author's Name |
Hirotsugu Kakugawa |
4th Author's Affiliation |
Osaka University (Osaka Univ) |
5th Author's Name |
Toshimitsu Masuzawa |
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Osaka University (Osaka Univ) |
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Speaker |
Author-1 |
Date Time |
2017-10-27 15:50:00 |
Presentation Time |
30 minutes |
Registration for |
COMP |
Paper # |
COMP2017-25 |
Volume (vol) |
vol.117 |
Number (no) |
no.269 |
Page |
pp.37-44 |
#Pages |
8 |
Date of Issue |
2017-10-20 (COMP) |
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