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Conference Paper Requirements and Service Scenario for High Quality Mobile VoIP Service in Convergence Network
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Authors
Kyu Ouk Lee, Young Sun Kim
Issue Date
2008-02
Citation
International Conference on Advanced Communication Technology (ICACT) 2008, pp.1246-1249
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/ICACT.2008.4493990
Abstract
Current IP based voice service has limitation of QoS owing to the packet delay, loss, and jitter. To improve voice service quality, along with providing voice mobility functions over current IP based network, service scenarios are proposed by providing seamless mobility in heterogeneous network among WiFi, 3G, 4G, mobile WiMAX. First of all, requirements for high quality mobile VoIP are mentioned in user terminal layer, network layer, service control layer, and detail service scenarios are described in registration phase, service signal phase, real service provisioning phase, and service closing phase. Currently VoIP service with WiBro and WiFi is under consideration, so proposed service scenarios will became useful guidelines for high quality mobile VoIP service in heterogeneous network.
KSP Keywords
Control layer, IEEE 802.16e(Mobile wimax), Mobile VoIP, Packet Delay, Seamless mobility, Service Quality, Service Scenarios, Service control, Service provisioning, Signal phase, VoIP service