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)

This paper describes designing an efficient mesh topology Network-on-Chip system by employing MPLS protocol as an on-chip communication technique. A discrete-event simulator is developed in C++ to show the applicability of MPLS in providing efficient on-chip communication for multicore processing system-on-chip designs. Experimental results are compared with two simulators: wormhole equipped with virtual channels; and MPLS-based fat tree network-on-chip systems. Outstandingly, MPLS as on-chip communication means recorded better results than the wormhole +virtual channels in terms of throughput and packet end-to-end delay (latency).
Azeddien M. Sllame, Hadeel Ben Rajab , Nagwa Salama (1-2021)

Multipath Transmission Control Protocol (MPTCP) has been proposed by the Internet Engineering Task Force (IETF) working group, in order to get benefit of the interfaces in the network devices, as most of these network devices are equipped with more than one interface. MPTCP splits a single data stream across multiple paths. This has obvious benefits for reliability, and it can also lead to more efficient use of network resources. The main aim of this paper is to study the main mechanism of the MPTCP and some of the multipath transmission protocols. arabic 5 English 43
Mariam Abojela Msaad, Taha Arabi , Amer R. Zerek(1-2013)