Multi-user session control in the next generation wireless system

Abstract

Next generation IP wireless systems are envisioned to be heterogeneous and to provide ubiquitous services to mobile users with different quality of service requirements. Furthermore, in order to attract and keep customers, mobile operators are expanding their portfolio with the inclusion of publish-subscribe services, such as real-time multimedia sessions. This paper presents a signalling application layer based on the Next Steps in Signalling (NSIS) framework that aims to provide the control of sessions to multiple users across heterogeneous wireless systems, called Multi-user Session Control (MUSC). Supported by a session-aware signalling protocol, named MUSC-P, which is highlighted in this paper, MUSC controls the session quality of service mapping and adaptation, the ubiquitous access of mobile users to the available published sessions and the session connectivity between networks with different address realms. The protocol is detailed, its functionalities are presented, and an initial performance evaluation shows the protocol efficiency concerning the control of session setup to multiple users.

Discrete quality assessment in IPTV content distribution networks

“…Several signalling management schemes such as next steps in signaling (NSIS) have been proposed in the past for QoE measurement and management as summarised in [34,35]. Signalling protocols are commonly customised according to the specific network and service infrastructure.…”

Quality of Experience management framework for real-time multimedia applications

“…QoEP extends the Next Steps Signalling (NSIS) protocol (Cerqueira et al, 2006) with QoE support and operates edge-to-edge following a receiver-driven, source-initiation and soft-state fashion.…”

QoS Support for Multi-user Sessions in IP-based Next Generation Networks

“…This approach does not require changes in mobile devices, shields end-user and network internals from the details of the QoS infrastructures and assures an acceptable quality level to sessions, even during handover or failure. The MUSC functionalities are implemented by MUSC agents, where a signalling protocol, called MUSC Protocol (MUSC-P) [20], is used to coordinate QoS mapping and QoS adaptation controllers with other agents along the endto-end session path. MUSC agents can be configured in a centralized or decentralized manner.…”