Abstract-A variety of current and future wired and wireless networking technologies can be transformed into seamless communication environments through application of contextbased 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. 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.
Balasubramanian and Indulska REF propose a vertical handover mechanism that matches QoS requirements of multimedia applications onto the location based QoS provided by the wireless networks.
Vertical Handover Supporting Pervasive Computing in Future Wireless Networks
Comput. Commun.
Comput. Commun.
Computer Science