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International Journal of Digital Multimedia Broadcasting
Volume 2010, Article ID 836501, 14 pages
http://dx.doi.org/10.1155/2010/836501
Research Article

Performance Evaluation of Triple Play Services Delivery with E2E QoS Provisioning

NCSR Demokritos, Institute of Informatics & Telecommunications, Partiarxou Grigoriou & Neapolews, Agia Paraskevi, Attiki, 15310 Athens, Italy

Received 20 November 2009; Revised 30 March 2010; Accepted 21 June 2010

Academic Editor: Daniel Negru

Copyright © 2010 Nikolaos Zotos et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The creation and wide use of new high quality demanding services (VoIP, High Quality Video Streaming) and the delivery of them over already saturated core and access network infrastructures have created the necessity for E2E QoS provisioning. Network Providers use at their infrastructures several kinds of mechanisms and techniques for providing QoS. Most known and widely used technologies are MPLS and DiffServ. The IEEE 802.16-2004 standard (WiMAX) refers to a promising wireless broadband technology with enhanced QoS support algorithms. This document presents an experimental network infrastructure providing E2E QoS, using a combination of MPLS and DiffServ technologies in the core network and WiMAX technology as the wireless access medium for high priority services (VoIP, High Quality Video Streaming) transmission. The main scope is to map the traffic prioritization and classification attributes of the core network to the access network in a way which does not affect the E2E QoS provisioning. The performance evaluation will be done by introducing different kinds of traffic scenarios in a saturated and overloaded network environment. The evaluation will prove that this combination made feasible the E2E QoS provisioning while keeping the initial constrains as well as the services delivered over a wireless network.