Dissertation DIS-2007-06

Bibliograph.
Daten
Schiele, Gregor: System Support for Spontaneous Pervasive Computing Environments.
Universität Stuttgart, Fakultät Informatik, Elektrotechnik und Informationstechnik, Dissertation (2007).
197 Seiten, englisch.
CR-Klassif.D.4.4 (Operating Systems Communications Management)
D.2.12 (Software Engineering Interoperability)
C.2.4 (Distributed Systems)
C.2.1 (Network Architecture and Design)
Keywordspervasive computing , micro kernel , service discovery , energy efficiency
Kurzfassung

Mobile networked devices become more and more pervasive. By embedding such devices into everyday items, pervasive computing systems will emerge in the near future. Current approaches for such systems are based on the model of Smart Environments. In such environments, a preinstalled hardware infrastructure enhances a spatial area, e.g., a room or house, and enables it to coordinate multiple mobile devices present in the environment to cooperatively provide services to the users. However, such systems rely on the presence of such an expensive infrastructure and do not work in areas without it. This restricts the deployment of pervasive computing systems severely. Therefore, in this work we propose another model for pervasive computing systems, the so-called Smart Peer Group model. A Smart Peer Group consists of a number of interconnected mobile devices that discover each other dynamically and form a spontaneous composition of devices. Coordination is provided by the participating devices themselves and no external infrastructure is needed. This results in a highly flexible system that can be used at any time and anywhere. The development of such systems is a non trivial task, due to the high level of dynamism, the potentially high resource constraintness, and the unpredictable nature of Smart Peer Groups. In this dissertation, we present the Smart Peer Group model and analyze the specific characteristics of this system class. In addition, we propose a number of concepts and algorithms to develop Smart Peer Group-based Pervasive Computing systems. A communication middleware for Smart Peer Groups is presented, which offers means to cope with resource-poor specialized devices and shields application developers from fluctuating network connectivities. Furthermore, a service discovery system for such systems is developed, which allows unused devices to temporarily deactivate themselves in order to save energy without loosing the ability to discover new services or to be discovered by others. The presented concepts and algorithms are evaluated in different scenarios using an analytical and an experimental evaluation.

Abteilung(en)Universität Stuttgart, Institut für Parallele und Verteilte Systeme, Verteilte Systeme
Projekt(e)3PC
Eingabedatum9. April 2008
   Publ. Institut   Publ. Informatik