End-to-End QoS Signaling for Future Multimedia Services in the NGN
The paper presents a model for Quality of Service (QoS) signaling for complex multimedia services in the next generation network (NGN), from establishing necessary QoS support at session setup, to further QoS modifications in response to dynamic changes during the session. The model aims to maximize user perceived quality, while taking into account constraints imposed by the user, network, and service itself. While the model is independent of the particular service and network scenario, we take a Networked Virtual Reality (NVR) service as a fairly good representative of intricate media-rich services in the NGN. We further propose a mapping onto the IP Multimedia Subsystem (IMS), as the most prominent NGN-driven part of the current Universal Mobile Telecommunications System (UMTS) architecture; and identify its possible functional enhancements for supporting services such as NVR.
KeywordsService Profile Session Description Protocol Parameter Subset Virtual Envi Client Profile
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- 1.3GPP TS 23.228: IP Multimedia Subsystem (IMS); Stage 2 (June 2005)Google Scholar
- 2.3GPP TS 23.803: Evolution of Policy Control and Charging (September 2005)Google Scholar
- 3.ITU-T Recommendation Y.2001: General Overview of NGN (December 2004)Google Scholar
- 4.ITU-T Recommendation H.360: An architecture for end-to-end QoS control and signalling (March 2004)Google Scholar
- 6.Gao, X., Wu, G., Miki, T.: End-to-end QoS Provisioning in Mobile Heterogeneous Networks. IEEE Wireless Communications Magazine, 24–34 (June 2004)Google Scholar
- 7.Handley, M., Jacobson, V.: SDP: Session Description Protocol. IETF RFC 2327 (1998)Google Scholar
- 9.Prior, R., Sargento, S., Gomes, D., Aguiar, R.L.: Heterogeneous Signaling Framework for End-to-end QoS support in Next Generation Networks. In: Proc. of 38th Hawaii International Conf. on Systems Sciences (HICSS-38 2005), CD-ROM / Abstracts Proceedings, Big Island, HI, USA (January 2005)Google Scholar
- 10.Rosenberg, J., et al.: SIP: Session Initiation Protocol. IETF RFC 3261 (2002)Google Scholar
- 12.Skorin-Kapov, L., Matijasevic, M.: Dynamic QoS Negotiation and Adaptation for Networked Virtual Reality Services. In: Proc. of IEEE WoWMoM 2005, Taormina, Italy, June 2005, pp. 344–351 (2005)Google Scholar