TY - JOUR
T1 - IP multimedia subsystems in 3GPP and 3GPP2
T2 - Overview and scalability issues
AU - Agrawal, Prathima
AU - Yeh, Jui Hung
AU - Chen, Jyh-Cheng
AU - Zhang, Tao
PY - 2008/1
Y1 - 2008/1
N2 - The Internet has experienced tremendous expansion in the past several years. Demands for IP multimedia services are emerging. The thirdgeneration (3G) wireless networks aim to support mobile users with numerous Internet services. 3G standards organizations are developing IP multimedia subsystems (IMS) to achieve seamless integration between Internet and 3G networks. Moreover, the collaboration between IETF, 3GPP, and 3GPP2 is essential to the development of IMS for next-generation networks. This article first provides an overview of 3GPP and 3GPP2 IMS and illustrates the IMS requirements, architectures, and functional models. We then discuss potential scalability issues in IMS. This article provides guidance for constructing a robust and scalable IMS.
AB - The Internet has experienced tremendous expansion in the past several years. Demands for IP multimedia services are emerging. The thirdgeneration (3G) wireless networks aim to support mobile users with numerous Internet services. 3G standards organizations are developing IP multimedia subsystems (IMS) to achieve seamless integration between Internet and 3G networks. Moreover, the collaboration between IETF, 3GPP, and 3GPP2 is essential to the development of IMS for next-generation networks. This article first provides an overview of 3GPP and 3GPP2 IMS and illustrates the IMS requirements, architectures, and functional models. We then discuss potential scalability issues in IMS. This article provides guidance for constructing a robust and scalable IMS.
UR - http://www.scopus.com/inward/record.url?scp=39449125263&partnerID=8YFLogxK
U2 - 10.1109/MCOM.2008.4427242
DO - 10.1109/MCOM.2008.4427242
M3 - Review article
AN - SCOPUS:39449125263
SN - 0163-6804
VL - 46
SP - 138
EP - 145
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 1
ER -