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Collision-free network exploration

Abstrakt

Mobile agents start at different nodes of an n-node network. The agents synchronously move along the network edges in a collision-free way, i.e., in no round two agents may occupy the same node. An agent has no knowledge of the number and initial positions of other agents. We are looking for the shortest time required to reach a configuration in which each agent has visited all nodes and returned to its starting location. In the scenario when each mobile agent knows the map of the network, we provide tight (up to a constant factor) lower and upper bounds on the collision-free exploration time in arbitrary graphs, and the exact bound for the trees. In the second scenario, where the network is unknown to the agents, we propose collision-free exploration strategies running in O(n^2) rounds in tree networks and in O(n^5log⁡n) rounds in networks with an arbitrary topology.

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Jurek Czyzowicz, Dariusz Dereniowski, Leszek Gąsieniec, Ralf Klasing, Adrian Kosowski, Dominik Pająk. (2017). Collision-free network exploration. Journal Of Computer And System Sciences, 8, 70-81. https://doi.org/10.1016/j.jcss.2016.11.008

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
JOURNAL OF COMPUTER AND SYSTEM SCIENCES nr 8, strony 70 - 81,
ISSN: 0022-0000
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Czyzowicz J., Dereniowski D., Gąsieniec L., Klasing R., Kosowski A., Pająk D.: Collision-free network exploration// JOURNAL OF COMPUTER AND SYSTEM SCIENCES. -Vol. 8, (2017), s.70-81

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