Authors: Sunil Kumar, Mahasweta Sarkar, Mehul N. Vora
Addresses: Electrical and Computer Engineering Department, San Diego State University, 5500 Campanile Drive, MC 1309, San Diego, CA 92182 1309, USA. ' Electrical and Computer Engineering Department, San Diego State University, 5500 Campanile Drive, MC 1309, San Diego, CA 92182 1309, USA. ' Math and Computer Science Department, Clarkson University, Potsdam, NY 13699, USA
Abstract: We propose a receiver-oriented resource reservation mechanism, called dynamic management of QoS with priority (DMQP), for multimedia multicasting over the internet that provides quality of service (QoS) guarantees with service differentiation for heterogeneous users. In the DMQP protocol, a real-time application requests QoS by specifying a range of acceptable bandwidth values and tolerable delay durations as opposed to rigid QoS criteria. The network strives to reserve resources for the application within its bandwidth range. The service differentiation is achieved by classifying the realtime applications (or end-users) into normal and prioritised users. When the number of end-users increases, all nodes, including the receiver, sender and intermediate nodes, readjust their reserved resources dynamically to admit the new end-users, as long as their minimum bandwidth requirement is met. The DMQP provides the flexibility needed for operation in the dynamic internet environment. It has significant benefit of allowing more flexible sharing of available resources among applications.
Keywords: multicast; dynamic management; multimedia multicasting; QoS; quality of service; reservation protocol; resource reservation; bandwidth values; delay durations; resource sharing; flexibility.
International Journal of Autonomous and Adaptive Communications Systems, 2009 Vol.2 No.1, pp.87 - 105
Published online: 30 Mar 2009 *Full-text access for editors Access for subscribers Purchase this article Comment on this article