Published Articles >> Table of Contents >> Abstract

23rd IEEE International Conference on Distributed Computing Systems (ICDCS'03)   p. 194
QoS-Assured Service Composition in Managed Service Overlay Networks
Xiaohui Gu, University of Illinois at Urbana-Champaign
Klara Nahrstedt, University of Illinois at Urbana-Champaign
Rong N. Chang, IBM T.J. Watson Research Center
Christopher Ward, IBM T.J. Watson Research Center

Full Article Text:

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/ICDCS.2003.1203466
Send link to a friend

Abstract
Many value-added and content delivery services are being offered via service level agreements (SLAs). These services can be interconnected to form a service overlay network (SON) over the Internet. Service composition in SON has emerged as a cost-effective approach to quickly creating new services. Previous research has addressed the reliability, adaptability, and compatibility issues for composed services. However, little has been done to manage generic quality-of-service (QoS) provisioning for composed services, based on the SLA contracts of individual services. In this paper, we present QUEST, a QoS assUred composEable Service infrasTructure, to address the problem. QUEST framework provides: (1) initial service composition, which can compose a qualified service path under multiple QoS constraints (e.g., response time, availability). If multiple qualified service paths exist, QUEST chooses the best one according to the load balancing metric; and (2) dynamic service composition, which can dynamically recompose the service path to quickly recover from service outages and QoS violations. Different from the previous work, QUEST can simultaneously achieve QoS assurances and good load balancing in SON.
Back to Top Additional Information
Citation:  Xiaohui Gu, Klara Nahrstedt, Rong N. Chang, Christopher Ward, "QoS-Assured Service Composition in Managed Service Overlay Networks," icdcs, p. 194,  23rd IEEE International Conference on Distributed Computing Systems (ICDCS'03),  2003