Title :
Requirements and Service Scenario for High Quality Mobile VoIP Service in Convergence Network
Author :
Lee, Kyu Ouk ; Kim, Young Sun
Author_Institution :
Electron. & Telecommun. Res. Inst. (ETRI), Daejeon
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.
Keywords :
Internet telephony; WiMax; broadband networks; mobile computing; quality of service; IP based network; QoS; WiBro; WiFi; WiMAX; convergence network; heterogeneous network; high quality mobile VoIP service; network layer; real service provisioning phase; registration phase; seamless mobility; service control layer; service signal phase; user terminal layer; voice mobility functions; Convergence; Driver circuits; Electronic mail; Guidelines; Jitter; Quality of service; Resource management; Sun; US Department of Transportation; WiMAX; 3G; 4G; Mobility; VoIP; WiBro; WiFi;
Conference_Titel :
Advanced Communication Technology, 2008. ICACT 2008. 10th International Conference on
Conference_Location :
Gangwon-Do
Print_ISBN :
978-89-5519-136-3
DOI :
10.1109/ICACT.2008.4493990
