標題: Bearer Reservation with Preemption for Voice Call Continuity
作者: Lin, Yi-Bing
Tsai, Meng-Hsun
Dai, Hui-Wen
Chen, Yuan-Kai
資訊工程學系
Department of Computer Science
關鍵字: Domain transfer;IP multimedia core network subsystem (IMS);universal mobile telecommunications system (UMTS);voice call continuity (VCC)
公開日期: 1-May-2009
摘要: In Universal Mobile Telecommunications System (UNITS), the core network consists of two service domains: the circuit-switched (CS) and the packet-switched (PS) domains. A UNITS handset can initiate or receive a call in either the CS or the PS domain. During the call, the user may switch from one domain to another. The switching overhead is an important concern of domain transfer. In this paper, we propose the Bearer Reservation with Preemption (BRP) scheme to support fast domain transfer, and present both analytic model and simulation experiments to investigate the BRP performance. Our study indicates that when user behavior is irregular (i.e., either the variance of the domain residence times or the variance of the call holding times is large), the advantage of the BRP scheme becomes significant.
URI: http://dx.doi.org/10.1109/TWC.2009.081085
http://hdl.handle.net/11536/149783
ISSN: 1536-1276
DOI: 10.1109/TWC.2009.081085
期刊: IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS
Volume: 8
起始頁: 2716
結束頁: 2725
Appears in Collections:Articles