SERvartuka: Dynamic Distribution of State to Improve SIP Server Scalability
ICDCS '08 Proceedings of the 2008 The 28th International Conference on Distributed Computing Systems
SIP-empowered optical networks for future IT services and applications
IEEE Communications Magazine
IEEE Wireless Communications - Special issue title on applications and support technical for mobility and enterprise services
Evaluating extensions to IMS session setup for multicast-based many-to-many services
Computer Networks: The International Journal of Computer and Telecommunications Networking
A survey of QoE assurance in converged networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Lightweight multimedia packet prioritization model for unequal error protection
IEEE Transactions on Consumer Electronics
Overview of ITU-T NGN QoS Control
IEEE Communications Magazine
IP multimedia subsystems in 3GPP and 3GPP2: overview and scalability issues
IEEE Communications Magazine
IEEE Transactions on Circuits and Systems for Video Technology
| Hi-index | 0.00 |
The emerging use of real-time 3D-based multimedia applications imposes strict quality of service (QoS) requirements on both access and core networks. These requirements and their impact to provide end-to-end 3D videoconferencing services have been studied within the Spanish-funded VISION project, where different scenarios were implemented showing an agile stereoscopic video call that might be offered to the general public in the near future. In view of the requirements, we designed an integrated access and core converged network architecture which provides the requested QoS to end-to-end IP sessions. Novel functional blocks are proposed to control core optical networks, the functionality of the standard ones is redefined, and the signaling improved to better meet the requirements of future multimedia services. An experimental test-bed to assess the feasibility of the solution was also deployed. In such test-bed, set-up and release of end-to-end sessions meeting specific QoS requirements are shown and the impact of QoS degradation in terms of the user perceived quality degradation is quantified. In addition, scalability results show that the proposed signaling architecture is able to cope with large number of requests introducing almost negligible delay.