Publication: IEICE TRANSACTIONS on Information and Systems Publication Date: 2011/01/01 Vol. E94-DNo. 1pp. 3-10 Type of Manuscript: Special Section PAPER (IEICE/IEEE Joint Special Section on Autonomous Decentralized Systems Technologies and Their Application to Networked Systems) Category: Community Keyword: networked control systems, sensor networks, coverage problem, nonholonomic mobile robots, collision avoidance,