NDLI: Ring Exploration by Oblivious Agents with Local Vision

Content Provider	IEEE Xplore Digital Library
Author	Datta, A.K. Lamani, A. Larmore, L.L. Petit, F.
Copyright Year	2013
Description	Author affiliation: MIS, Univ. of Picardie Jules Verne Amiens, Amiens, France (Lamani, A.) \|\| Sch. of Comput. Sci., Univ. of Nevada, Las Vegas, NV, USA (Datta, A.K.; Larmore, L.L.) \|\| INRIA, UPMC Sorbonne Univ., Paris, France (Petit, F.)
Abstract	The problem of exploring a discrete environment by identical oblivious asynchronous agents (or robots) devoid of direct means of communication has been well investigated so far. The (terminating) exploration requires that starting from a configuration where no two agents occupy the same node, every node needs to be visited by at least one agent, with the additional constraint that all agents eventually stop moving. Agents have sensors that allow them to see their environment and move accordingly. The previous works on this problem assume agents having an unlimited visibility, that is, they can sense the agents on every node of the ring, whatever the ring size. In this paper, we address deterministic exploration in an anonymous, unoriented ring using oblivious, and myopic agents. By myopic, we mean that their visibility is limited in terms of sensing distance. We consider the strongest possible myopia that is, an agent can only sense agents located at its own and at its immediate neighboring nodes. Our contribution is threefold. We first prove that within such settings, no deterministic exploration is possible in the semi-synchronous model. The result is also valid for the (fully) asynchronous model and holds for any k 6. Finally, we provide optimal (in terms of number of agents) deterministic algorithms in the fully synchronous model for both cases 3 6.
Starting Page	347
Ending Page	356
File Size	440972
Page Count	10
File Format	PDF
ISBN	9780769550008
ISSN	10636927
DOI	10.1109/ICDCS.2013.55
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Protocols Computational modeling Sensors Bismuth Educational institutions Abstracts Mirrors Limited Visibility Anonymous Oblivious Agents Deterministic Exploration Discrete Environment
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Hardware and Architecture Software

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