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Partial Gathering of Mobile Agents in Asynchronous Rings by Shibata, Masahiro; Kawai, Shinji; Ooshita, Fukuhito; Kakugawa, Hirotsugu; Masuzawa, Toshimitsu is a scholarly article available to read on EtoBox.

What is Partial Gathering of Mobile Agents in Asynchronous Rings about?

In this paper, we consider the partial gathering problem of mobile agents in asynchronous unidirectional rings equipped with whiteboards on nodes. The partial gathering problem is a new generalization of the total gathering problem. The partial gathering problem requires, for a given integer $g$, that each agent should move to a node and terminate so that at least $g$ agents should meet at the same node. The requirement for the partial gathering problem is weaker than that for the (well-investigated) total gathering problem, and thus, we have interests in clarifying the difference on the move complexity between them. We propose three algorithms to solve the partial gathering problem. The first algorithm is deterministic but requires unique ID of each agent. This algorithm achieves the partial gathering in $O(gn)$ total moves, where $n$ is the number of nodes. The second algorithm is randomized and requires no unique ID of each agent (i.e., anonymous). This algorithm achieves the partial gathering in expected $O(gn)$ total moves. The third algorithm is deterministic and requires no unique ID of each agent. For this case, we show that there exist initial configurations in which no al

Author

Shibata, Masahiro; Kawai, Shinji; Ooshita, Fukuhito; Kakugawa, Hirotsugu; Masuzawa, Toshimitsu

Published

2015

Language

EN