Vertical handover supporting pervasive computing in future wireless networks

A variety of current and future wired and wireless networking technologies can be transformed into a seamless communication environments through application of context-based vertical handovers. Such seamless communication environments are needed for future pervasive/ubiquitous systems. Pervasive sys...

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Bibliographic Details
Published in:Computer communications 2004-05, Vol.27 (8), p.708-719
Main Authors: Balasubramaniam, S., Indulska, J.
Format: Article
Language:English
Subjects:
Mobile communications
Networks
Quality of service
Service quality
Vertical handover
Wireless communications
Wireless networks
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Summary:A variety of current and future wired and wireless networking technologies can be transformed into a seamless communication environments through application of context-based vertical handovers. Such seamless communication environments are needed for future pervasive/ubiquitous systems. Pervasive systems are context aware and need to adapt to context changes, including network disconnections and changes in network Quality of Service (QoS). Vertical handover is one of many possible adaptation methods. It allows users to roam freely between heterogeneous networks while maintaining the continuity of their applications. This paper proposes a vertical handover mechanism suitable for multimedia applications in pervasive systems. The paper focuses on the handover decision making process which uses context information regarding user devices, user location, network environment and requested QoS.
ISSN:0140-3664
1873-703X
DOI:10.1016/j.comcom.2003.10.010