Blackboard Rules for Coordinating Context-aware Applications in Mobile Ad Hoc Networks

摘要

Thanks to improvements in wireless communication technologies and increasingcomputing power in hand-held devices, mobile ad hoc networks are becoming anever-more present reality. Coordination languages are expected to becomeimportant means in supporting this type of interaction. To this extent we arguethe interest of the Bach coordination language as a middleware that can handleand react to context changes as well as cope with unpredictable physicalinterruptions that occur in opportunistic network connections. More concretely,our proposal is based on blackboard rules that model declaratively the actionsto be taken once the blackboard content reaches a predefined state, but alsothat manage the engagement and disengagement of hosts and transient sharing ofblackboards. The idea of reactiveness has already been introduced in previouswork, but as will be appreciated by the reader, this article presents a newperspective, more focused on a declarative setting.