Federated broker system for pervasive context provisioning

Kiani, Saad Liaquat; Anjum, Ashiq; Knappmeyer, Michael; Bessis, Nik; Antonopoulos, Nikolaos

Abstract

Software systems that provide context-awareness related functions in pervasive computing environments are gaining momentum due to emerging applications, architectures and business models. In most context-aware systems, a central broker performs the functions of context acquisition, processing, reasoning and provisioning to facilitate context-consuming applications, but demonstrations of such prototypical systems are limited to small, focussed domains. In order to develop modern context-aware systems that are capable of accommodating emerging pervasive/ubiquitous computing scenarios, are easily manageable, administratively and geographically scalable, it is desirable to have multiple brokers in the system divided into administrative, network, geographic, contextual or load based domains. Context providers and consumers may be configured to interact only with their nearest, relevant or most convenient broker. This setup demands inter-broker federation so that providers and consumers attached to different brokers can interact seamlessly, but such a federation has not been proposed for context-aware systems. This article analyses the limiting factors in existing context-aware systems, postulates the design and functional requirements that modern context-aware systems need to accommodate, and presents a federated broker based architecture for provisioning of contextual information over large geographical and network spans.

Citation

Kiani, S. L., Anjum, A., Knappmeyer, M., Bessis, N., & Antonopoulos, N. (2013). Federated broker system for pervasive context provisioning. Journal of Systems and Software, 86(4), 1107-1123. https://doi.org/10.1016/j.jss.2012.11.050

• Journal Article Type: Article
• Acceptance Date: Nov 27, 2012
• Online Publication Date: Dec 6, 2012
• Publication Date: 2013-04
• Deposit Date: Feb 13, 2019
• Journal: Journal of Systems and Software
• Print ISSN: 0164-1212
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 86
• Issue: 4
• Pages: 1107-1123
• DOI: https://doi.org/10.1016/j.jss.2012.11.050
• Keywords: Context provisioning, federated broker model, distributed systems design,
• Public URL: http://researchrepository.napier.ac.uk/Output/1557214