IP Multimedia Subsystem

Mission-critical Communication Systems that are adaptable for use with the latest generation of multimedia services are crucial for system users. To determine the set of requirements that need to be hardcoded into such systems, a clear distinction between mission-critical and non-mission-critical systems is required. Moreover, the users of services provided by such systems are very different to those of current mobile commercial communication systems. These differences give rise to a set of challenges that need addressing to facilitate migration from existing systems to those now being proposed. One such challenge relates to the performance of the IP Multimedia Subsystem (IMS) registration process. This is a crucial consideration for mission-critical systems, particularly in large-scale systems where thousands or even millions of users may seek to access the system in disaster scenarios. This paper presents an evaluation of IMS and Session Initiation Protocol (SIP) performance metrics and Key Performance Indicators (KPIs). Moreover, it articulates a proposed study that will seek to address some of the challenges identified.

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Effective Performance Metrics for Multimedia Mission-critical Communication Systems

In this era of mobile Internet, people can quickly and easily access multimedia services and applications through mobile phones. And multimedia services are ubiquitous in life, such as text, pictures, voice, and video, to convey and receive media that give people all kinds of information. In addition, with the rapid development of the Internet of Things, all the devices around the world have networking functions, so that people not only enjoy application services on mobile phones but also want to further develop with devices of our living environments. IP Multimedia Subsystem (IMS) is a platform that can integrate multimedia services. If people want to enjoy IMS services directly through peripheral devices (i.e., non-IMS devices), they must be authorized by IMS devices to be trusted devices. This paper is based on Gateway as a trusted intermediary role, connecting peripheral devices in the IMS network so that these non-IMS devices can also talk with the IMS device, so IMS users can also use his peripheral devices for IMS talk service.

Yu-Hung Huang

Papers

Integrate Non-IP Multimedia Subsystem Devices in IP Multimedia Subsystem Services