Abstract
In heterogeneous radio access networks mobile terminals can dynamically change their radio access not only between access points but also between different radio access technologies (RATs). We present a network based Multi-Radio Management (MRM) for seamless control of inter-RAT mobility. Access Selection can be triggered by a change of radio channel quality, by the start of an application or by system load and handover is executed by enhanced MobileIPv6. Dynamic adaptation of the IMS services, e.g. adaptation of IPTV to the available bandwidth, is realized by triggering additional mid-call SIP signaling between communicating parties so that Quality of Experience (QoE) can be significantly improved. The described MRM and dynamic adaptation of IMS services are validated by a prototypical implementation in an integrated demonstrator.
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Blume, O., Gebert, J., Stein, M., Sivchenko, D., Xu, B. (2010). Bandwidth Sensitive Adaptation of Applications during MRM Controlled Multi-Radio Handover. In: Pentikousis, K., Blume, O., Agüero Calvo, R., Papavassiliou, S. (eds) Mobile Networks and Management. MONAMI 2009. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 32. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-11817-3_3
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DOI: https://doi.org/10.1007/978-3-642-11817-3_3
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