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| HAL : hal-00442196, version 1 |
| arXiv : 1001.0889 |
| Fiche détaillée |  Récupérer au format |
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| Asynchronous deterministic rendezvous in bounded terrains |
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| Jurek Czyzowicz 1David Ilcinkas 2, 3 |
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| (18/12/2009) |
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| Two mobile agents (robots) have to meet in an a priori unknown bounded terrain modeled as a polygon, possibly with polygonal obstacles. Agents are modeled as points, and each of them is equipped with a compass. Compasses of agents may be incoherent. Agents construct their routes, but the actual walk of each agent is decided by the adversary: the movement of the agent can be at arbitrary speed, the agent may sometimes stop or go back and forth, as long as the walk of the agent in each segment of its route is continuous, does not leave it and covers all of it. We consider several scenarios, depending on three factors: (1) obstacles in the terrain are present, or not, (2) compasses of both agents agree, or not, (3) agents have or do not have a map of the terrain with their positions marked. The cost of a rendezvous algorithm is the worst-case sum of lengths of the agents' trajectories until their meeting. For each scenario we design a deterministic rendezvous algorithm and analyze its cost. We also prove lower bounds on the cost of any deterministic rendezvous algorithm in each case. For all scenarios these bounds are tight. |
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| 1 : | Département d'Informatique et d'Ingénierie (DII) |
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Université du Québec en Outaouais |
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| 2 : | Laboratoire Bordelais de Recherche en Informatique (LaBRI) |
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CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB) – Université Victor Segalen - Bordeaux II |
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| 3 : | CEPAGE (INRIA Bordeaux - Sud-Ouest) |
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INRIA – CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB) |
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| ALADDIN |
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| Domaine | : | Informatique/Algorithme et structure de données |
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| mobile agent – rendezvous – deterministic – polygon – obstacle |
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| Liste des fichiers attachés à ce document : | ||||||||||
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| hal-00442196, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00442196 | |
| oai:hal.archives-ouvertes.fr:hal-00442196 | |
| Contributeur : Arnaud Labourel | |
| Soumis le : Mercredi 6 Janvier 2010, 14:23:44 | |
| Dernière modification le : Mercredi 6 Janvier 2010, 14:26:08 | |
