QoS-Aware Service Selection Algorithms for Pervasive Service Composition in Mobile Wireless Environments.
MOBILE NETW APPL
488 - 501.
The successful application of pervasive services running in mobile wireless networks and devices relies on its ability to provide efficient and cost-effective QoS (Quality of Service) support. This paper proposes a comprehensive QoS model specifically for pervasive services. It considers not only user-perceived factors but also mobile wireless network characteristics. The corresponding formula to calculate each QoS criterion is also devised. In particular, this paper formulates the QoS-aware service selection problem for pervasive service composition and proposes some solutions to the problem, i.e., global-search-based LOSSA (local optimal service selection algorithm) and limited broadcast based LOSSA-k. The evaluation results of the algorithms have shown the effectiveness of the QoS model and the efficiency of the proposed LOSSAs.
|Title:||QoS-Aware Service Selection Algorithms for Pervasive Service Composition in Mobile Wireless Environments|
|Keywords:||quality of service, pervasive service, service selection, service composition, mobile wireless networks, algorithms, NETWORKS, ONTOLOGY|
|UCL classification:||UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Engineering Science
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