Research Article
Bandwidth Sensitive Adaptation of Applications during MRM Controlled Multi-Radio Handover
@INPROCEEDINGS{10.1007/978-3-642-11817-3_3, author={Oliver Blume and Jens Gebert and Manuel Stein and Dmitry Sivchenko and Bangnan Xu}, title={Bandwidth Sensitive Adaptation of Applications during MRM Controlled Multi-Radio Handover}, proceedings={Mobile Networks and Management. First International Conference, MONAMI 2009, Athens, Greece, October 13-14, 2009. Revised Selected Papers}, proceedings_a={MONAMI}, year={2012}, month={5}, keywords={Multi-radio handover vertical handover MRM MRRM radio access selection ASF IMS codec adaptation SIP re-invite SIP codec adaptation}, doi={10.1007/978-3-642-11817-3_3} }- Oliver Blume
Jens Gebert
Manuel Stein
Dmitry Sivchenko
Bangnan Xu
Year: 2012
Bandwidth Sensitive Adaptation of Applications during MRM Controlled Multi-Radio Handover
MONAMI
Springer
DOI: 10.1007/978-3-642-11817-3_3
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.