Autonomic Computing Tutorial

Opportunistic Application Flows in Sensor-based Pervasive EnvironmentsNanyan Jiang, Cristina Schmidt, Vincent Matossian, and Manish ParasharICPS 20041„‰‰‰‰„OutlineIntroduction to pervasive sensor-based applicationsMeteor : A content-based middleware for decoupled interactions Content-based routing infrastructureProgramming model for decoupled interactionsOpportunistic application flowsImplementation and evaluationJuly 22nd 2004 2/30Opportunistic flows in pervasive environments ICPS 2004„‰„„„‰MotivationGrowing ubiquity of sensor/actuator devices with embedded communication and computation capabilitiesEmergence of pervasive applicationsSensors, actuators, services, resources – interact and collaborate to satisfy application goalsExamples:Fire management applicationsEmergency medical careJuly 22nd 2004 3/30Opportunistic flows in pervasive environments ICPS 2004„„‰‰‰‰„„„‰Sensor-based Pervasive EnvironmentsAd hoc structures/behaviorsInteractions form and stop in an ad hoc mannerDynamicPeers join and leave at any given timeUnreliableNo delivery or routing guaranteesLoosely-consistentGlobal knowledge bound by scale of the systemHeterogeneousRich variety of platforms, systems, and protocolsJuly 22nd 2004 4/30Opportunistic flows in pervasive environments ICPS 2004ORBIT: An Experimental Wireless Network TestbedJuly 22nd 2004 5/30Opportunistic flows in pervasive environments ICPS 2004‰‰‰‰‰ƒ‰„Enabling ...