For new service provisioning and flexible network management, diverse heterogeneous
networks are converged to a packet-based network with the help of service and control …

The Next Generation Network (NGN) architecture was proposed for delivering various
multimedia services with guaranteed quality. For this reason, the elements of the IP …

In this article, we take a closer look at interoperability and conformance aspects when using
3GPP IMS, ETSI TISPAN NGN, and related OMA service enablers. Considering the …

IMS (IP Multimedia Subsystem) is an emerging architectural framework that delivers a
number of multimedia services--ranging from voice/video over LTE, interactive gaming and …

Today's cellular core relies on a few expensive and dedicated hardware racks to connect the
radio access network and the egress point to the Internet, which are geographically placed …

Abstract Quality of Service (QoS) provisioning is one of the main requirements in the 3GPP
IP Multimedia Subsystem (IMS) and it has been addressed in different works since the …

Next-generation networks (NGNs) offer several advantages, such as support for many
application-rich new services, along with more traditional telephony applications, agnostic …

The success and quality of this journal depends on the dedication and expertise of a large
number of reviewers. On behalf of the Editorial Board, I would like to thank them explicitly for …

Analyzing the resource adequacy of complex cyber-physical systems at concept
development stage can be a challenging task since there are a lot of uncertainties about the …

Abstract IP Multimedia Subsystem (IMS) allows the use of unlicensed, non-dedicated and
nondeterministic access networks for delivering IP multimedia services. Providing end-to …