The creation and wide use of new high quality demanding services (VoIP, High Quality Video Streaming) and the delivery of\r\nthem over already saturated core and access network infrastructures have created the necessity for E2E QoS provisioning. Network\r\nProviders use at their infrastructures several kinds of mechanisms and techniques for providing QoS. Most known and widely\r\nused technologies are MPLS and DiffServ. The IEEE 802.16-2004 standard (WiMAX) refers to a promising wireless broadband\r\ntechnology with enhanced QoS support algorithms. This document presents an experimental network infrastructure providing\r\nE2E QoS, using a combination of MPLS and DiffServ technologies in the core network and WiMAX technology as the wireless\r\naccess medium for high priority services (VoIP, High Quality Video Streaming) transmission. The main scope is to map the\r\ntraffic prioritization and classification attributes of the core network to the access network in a way which does not affect the E2E\r\nQoS provisioning. The performance evaluation will be done by introducing different kinds of traffic scenarios in a saturated and\r\noverloaded network environment. The evaluation will prove that this combination made feasible the E2E QoS provisioning while\r\nkeeping the initial constrains as well as the services delivered over a wireless network.
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