Dynamic Management of Cooperative Applications for Mobile Systems
نویسندگان
چکیده
Management of nomadic computers (either portable laptops or mobile robots) in actual networks brings new challenges for eecient resources access and cooperative work. New systems have to cope with communication breaking of. Systems should also manage resources mobility (due to hardware location change or cell change for wireless communication), that may lead to prohibitive resources use due to communication delay/cost. We propose a new resources management scheme that takes these new challenges into account and apply it in a robotic environment. R esum e La gestion d'ordinateurs nomades (robots mobiles ou ordinateurs portables) dans le cadre de r eseaux classiques de communication am ene de nouveaux prob-l emes pour la mise a disponibilit e des ressources r eparties sur le r eseau et le travail coop eratif de plusieurs entit es. Il est d'abord n ecessaire de g erer les ruptures de communication, soit volontaires dans le cas d'une deconnection, ou impromptues dans le cas d'un passage dans une zone d'ombre pour les r eseaux cellulaires. Il faut de plus tenir compte des d eplacements de ressources (d eplacement d'un robot mobile, changement de cellule de communication) qui peuvent rendre prohibitif l'acc es a une ressource en raison du cout de communication (dans le cas d'applications temps-r eel). Nous proposons une ges-tion de ressources prenant en compte ces dii erents facteurs et l'appliquons a un environement robotique.
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