Dynamic management of QoS multimedia multicasting

Mehul Vora; Sunil Kumar

doi:10.1117/12.514063

26 November 2003 Dynamic management of QoS multimedia multicasting

Mehul Vora, Sunil Kumar

Proceedings Volume 5242, Internet Multimedia Management Systems IV; (2003) https://doi.org/10.1117/12.514063
Event: ITCom 2003, 2003, Orlando, Florida, United States

Abstract

The interaction between multicasting and real-time multimedia streams poses various new and interesting problems in research on communication protocols and architectures. For example, display systems of heterogeneous users in the same session may have different or even varying latency, display resolution, and/or processing capabilities. In this paper, we propose a receiver-oriented resource reservation mechanism, called Dynamic Management of QoS with Priority (DMQP), for multimedia multicasting over the Internet that provides QoS guarantees with service differentiation for heterogeneous users. In DMQP a real-time application requests QoS by specifying a range of bandwidth values and delay, and the network tries to reserve resources for it within its bandwidth range. The service differentiation is achieved by classifying the end-users into normal user and prioritized user. When the number of end-users increases, the new end-users are not simply rejected. Instead, all nodes, including receiver node(s), sender node(s) and intermediate node(s), readjust their reserved resources dynamically to admit more end-users, as long as their minimum bandwidth requirement is met. By treating the bandwidth requirements as ranges, DMQP provides the flexibility needed for operation in the dynamic Internet environment. It has the significant benefit of allowing more flexible sharing of available resources among applications. We have conducted simulations to evaluate the performance of the proposed mechanism.

Citation Download Citation

Mehul Vora and Sunil Kumar "Dynamic management of QoS multimedia multicasting", Proc. SPIE 5242, Internet Multimedia Management Systems IV, (26 November 2003); https://doi.org/10.1117/12.514063

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