Ring Exploration with Oblivious Myopic Robots

Ajoy K.Datta (1) , Anissa Lamani (2, 3) , Larmore Lawrence L. (4) , Franck Petit (3)

1 School of computer Science
2 MIS - Modélisation, Information et Systèmes - UR UPJV 4290
3 Regal - Large-Scale Distributed Systems and Applications
4 school of computer science

The exploration problem in the discrete universe, using identical oblivious asynchronous robots without direct communication, has been well investigated. These robots have sensors that allow them to see their environment and move accordingly. However, the previous work on this problem assume that robots have an unlimited visibility, that is, they can see the position of all the other robots. In this paper, we consider deterministic exploration in an anonymous, unoriented ring using asynchronous, oblivious, and myopic robots. By myopic, we mean that the robots have only a limited visibility. We study the computational limits imposed by such robots and we show that under some conditions the exploration problem can still be solved. We study the cases where the robots visibility is limited to 1, 2, and 3 neighboring nodes, respectively.

Mots clés: Asynchronous Anonymous Oblivious Robots; Deterministic Exploration; Discrete Environment; Limited Visibility

Domaines: Système multi-agents [cs.MA]; Calcul parallèle, distribué et partagé [cs.DC]

Ajoy K.Datta, Anissa Lamani, Larmore Lawrence L., Franck Petit. Ring Exploration with Oblivious Myopic Robots. [Technical Report] ???. 2012. ⟨hal-00700401⟩