Problems like poor security, transfer delay or packet loss occur while building network systems that are applied with TCP/IP integrate with data network systems. To solve this problem, this paper proposes the Separated Ethernet, which can give priority to the system, and by using the OPNET Modeler simulator, we will verify its performances.

CONFIDENTIAL RESTRICTED ACCESS: This information may not be disclosed, copied, or transmitted in any format without the prior written consent of OPNET Technologies, Inc. Used with permission of the Author. Effect of Cell Update on Performance of General Packet Radio Service Modupe Omueti, Renju Narayanan, and Ljiljana Trajković {momueti, rsn, ljilja}@cs.sfu.ca Simon Fraser University Vancouver,...

This research paper is based on simulation and analysis of QOS parameters for hard and soft handoffs. Performance of UMTS scenario is evaluated for various multimedia applications like FTP and HTTP. To accomplish the task of simulation OPNET TM 14.5 modulator used. From results, soft handoff is better than hard handoff because soft handoff support connections during mobility and handoff.

This Paper focuses on the effects of jelly fish attack on MANET’s routing protocols. Here four protocols AODV, DSR, TORA and GRP are used. Performance of the network has been evaluated in terms of Data dropped (buffer overflow), Data dropped (retry threshold exceeded), Load, Media access delay, Retransmission attempts. Simulations were carried out by using OPNET 14.5 simulator.

In this paper we describe a new simulation tool used to study the creation and optimization of propagation maps for Node State Routing protocols within wireless and mobile ad hoc networks. The simulation is developed in MATLAB and interfaces with DLL libraries for network data management support. These DLL libraries also have applications within OPNET for other Node State Routing studies.

Abstract- Communication has become inevitably part of our day to day activities, in academic, business, banking, and other sectors. It has therefore become so important to implement good and efficient communication system. A reference point according to this research is the wireless sensor networking (WSN) system, and most important thing in communication is to be free from interference, attenu...