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<XML><RECORDS>
<RECORD>
	<REFERENCE_TYPE>3</REFERENCE_TYPE>
	<AUTHORS>
		<AUTHOR>Bekris, K. E.</AUTHOR>
		<AUTHOR>Tsianos, K. I.</AUTHOR>
		<AUTHOR>Kavraki, L. E.</AUTHOR>
	</AUTHORS>
	<YEAR>2007</YEAR>
	<TITLE>A Decentralized Planner that Guarantees the Safety of Communicating Vehicles with Complex Dynamics that Replan Online</TITLE>
	<SECONDARY_TITLE>IEEE/RSJ Intl. Conf. on Intelligent Robots and Systems</SECONDARY_TITLE>
	<PLACE_PUBLISHED>San Diego, CA</PLACE_PUBLISHED>
	<DATE>29 Oct./2 Nov.</DATE>
	<KEYWORDS>
		<KEYWORD>distributed</KEYWORD>
		<KEYWORD>safe</KEYWORD>
		<KEYWORD>replanning</KEYWORD>
	</KEYWORDS>
	<ABSTRACT>This paper considers the problem of coordinating
               multiple vehicles with kinodynamic constraints that
               operate in the same partially-known environment. The
               vehicles are able to communicate within limited range.
               Their objective is to avoid collisions between them and
               with the obstacles, while the vehicles move towards
               their goals.  An important issue of real-time planning
               for systems with bounded acceleration is that
               inevitable collision states must also be avoided. The
               focus of this paper is to guarantee safety despite the
               dynamic constraints with a decentralized motion
               planning technique that employs only local
               information. We propose a coordination framework that
               allows vehicles to generate and select compatible sets
               of valid trajectories and prove that this scheme
               guarantees collision-avoidance in the specified
               setup. The theoretical results have been also
               experimentally confirmed with a distributed simulator
               where each vehicle replans online with a
               sampling-based, kinodynamic motion planner and uses
               message-passing to communicate with neighboring
               agents.</ABSTRACT>
	<URL>http://www.kavrakilab.org/sites/default/files/bekris_tsianos_iros07.pdf</URL>
</RECORD>
</RECORDS></XML>