This book chapter describes the place of MPLS in current state-of-the-art computer networking systems which emphasis the use of MPLS as a quality of service technique in different networking environments such as data centers and multimedia networking as a backbone networks. The chapter also includes practical experiments; which applied using OPNET network simulation tool; about transmitting multimedia over IP/MPLS networks and a fat tree data center architecture that employing MPLS. The examples show the feasibility of MPLS as a quality of service tool compared to best-effort IP networks. In addition, this chapter describes an effort of designing a network-on-chip system engaging MPLS mechanism as on-chip communication method which has been completely developed in C++. However, all results clearly confirm that MPLS is an efficient quality of service tool.
Azeddien M. Sllame(4-2021)

In this paper, a performance analysis study for VoIP over mobile wireless ad hoc networks (MANET) is carried out using OPNET tool. The AODV, DSR, TORA, OLSR, and GRP routing protocols have been used as candidates to evaluate the impact of routing on quality of service (QoS) of VoIP application over MANET networks. Three different queuing mechanisms (FIFO, PQ, and WFQ) have been used also as nominee of queuing techniques. The VoIP is applied and the QoS is measured in terms of jitter delay, end-to-end packet delay, and wireless LAN media access delay and wireless throughput of 802.11 g technology with 54 Mbps
Azeddien M. Sllame(1-2022)

This paper describes a comparative study of the performance of VoIP over wireless networks using OPNET tool. The simulation study is completed by running VoIP application in different network scenarios with IEEE 802.16 (UGS, ertPS) and IEEE 802.11 (b, g) with best effort service and interactive service The result clearly illustrated that the WiMax type ertPS has the best performance among all tested cases
Azeddien M. Sllame, Hana Soso, Mona Aown, Lamya Abdelmajeed(9-2016)