2026-09-20T23:20:19Zhttps://bura.brunel.ac.uk/oai/request

oai:bura.brunel.ac.uk:2438/39452016-01-27T09:08:31Zcom_2438_23com_2438_58com_2438_8630com_2438_8620col_2438_3672col_2438_210col_2438_8638

Perry, M Ghinea, G Umashangar, Caroline Sumathi 2009-12-09T12:37:00Z 2009-12-09T12:37:00Z 2009 http://bura.brunel.ac.uk/handle/2438/3945 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University. This thesis argues that the concept of spatial proximity offers a viable and practical option for the development of context-aware systems for highly mobile and dynamic environments. Such systems would overcome the shortcomings experienced by today’s location-based and infrastructure dependent systems whose ability to deliver context-awareness is prescribed by their infrastructure. The proposed architecture will also allow for scalable interaction as against the single level of interaction in existing systems which limits services to a particular sized area. The thesis examines the concept of spatial proximity and demonstrates how this concept can be exploited to take advantage of technological convergence to offer mobility and scalability to systems. It discusses the design of a proximity-based system that can deliver scalable context-aware services in highly mobile and dynamic environments. It explores the practical application of this novel design in a proximity-sensitive messaging application by creating a proof-of-concept prototype. The proof-of-concept prototype is used to evaluate the design as well as to elicit user views and expectations about a proximity-based approach. Together these provide a valuable insight into the applicability of the proximity-based approach for designing context-aware systems. The design and development work discussed in the thesis presents a Proximity-Sensitive System Architecture that can be adapted for a variety of proximity-sensitive services. This is illustrated by means of examples, including a variety of context-aware messaging applications. The thesis also raises issues for information delivery, resource sharing, and human-computer interaction. While the technological solution (proximity-based messaging) offered is only one among several that can be developed using this architecture, it offers the opportunity to stimulate ideas in the relatively new field of proximity and technological convergence research, and contributes to a better understanding of their potential role in offering context-aware services. Submitted by BURA Manager (bura-manager@brunel.ac.uk) on 2009-12-09T12:36:44Z No. of bitstreams: 1 Caroline Umashangar ISCS PhD Thesis V1.0.pdf: 1609182 bytes, checksum: aa064a08ecc5e7c3a127bb63d104fb39 (MD5) Approved for entry into archive by BURA Manager(bura-manager@brunel.ac.uk) on 2009-12-09T12:37:00Z (GMT) No. of bitstreams: 1 Caroline Umashangar ISCS PhD Thesis V1.0.pdf: 1609182 bytes, checksum: aa064a08ecc5e7c3a127bb63d104fb39 (MD5) Made available in DSpace on 2009-12-09T12:37:00Z (GMT). No. of bitstreams: 1 Caroline Umashangar ISCS PhD Thesis V1.0.pdf: 1609182 bytes, checksum: aa064a08ecc5e7c3a127bb63d104fb39 (MD5) en Brunel University, School of Information Systems, Computing and Mathematics School of Information Systems, Computing and Mathematics http://bura.brunel.ac.uk/bitstream/2438/3945/1/FulltextThesis.pdf Context-aware Proximity sensitive services Proximity-dependent Proximity-based systems: Incorporating mobility and scalability through proximity sensing Thesis