BERRY III is an interactive tool for the construction and simulation of neural network controlled artificial creatures that can be considered either as biological models or as simulated robots. Environments and creatures can be built and modified during simulation time using a large set of graphical editors and viewers. The simulator also includes an extensive package for generation of graphs a...

This paper presents a comparative study of two well-known network simulators: OPNET Modeler and Ns2. Other studies in this area have generally been confined to just one simulator. The motivation of this paper is to provide a guide to researchers undertaking packet-level network simulations. The simulator outputs were compared to the output from a live network testbed. The experimental compariso...

Simulation is the main tool for studying networking protocols before deploying them in a wide scale, or for understanding how they are expected to behave under various conditions. IRLSim is a new packet level network simulator that we developed in the hope to study several Internet protocols. From its modest inception as a simulator for the RSVP signaling protocol, IRLSim has evolved into a mor...

Communication protocols are a crucial area in the telecommunication engineering curricula. Learning the basis of this field requires the study of multiple and heterogeneous concepts that, in most cases, are explained by the translation and summarization of the published specifications. By this method, pupils memorize certain theoretical issues without understanding the correlation among them. A...

The emergence of IEEE802.11b, as a high data-rate MAC standard for wireless LANs, has led to widespread deployment of WLANs and has also influenced areas of both research and industry. A significant impact of the emergence of this protocol was the opening up of research in this area. Network Simulator (NS) is a discrete event simulator targeted at networking research, and has emerged over the y...

A network whose interconnections between nodes are implemented without using wires is referred to as wireless network and is usually related to a telecommunication network. As related to wired local area network, wireless channels are error-prone. Performance study and optimization of Wireless Local Area Network (WLAN) becomes more essential as its gaining popularity. For performance modelling ...

Simulation is an essential component of the validation chain in the design of network protocols. Indeed, while simulation is not the only tool used for data networking research, it is extremely useful because it often allows research questions and prototypes to be explored at many orders-of-magnitude less cost and time than that required to experiment with real implementations and networks. In ...

Optical wavelength division multiplexing (WDM) networking technology has been identified as a suitable candidate for future wide area network (WAN) environments, due to its potential ability to meet rising demands of high bandwidth and low latency communication. Networking protocols and algorithms are being developed to meet the changing operational requirements in future optical WANs (OWAN). S...

The ability to analyze the behavior of large distributed systems can be limited by the modeling tools used. The Distributed Virtual Network (DVN) is a discrete event network simulator providing a platform for realistic, high fidelity, scalable and repeatable simulations of large distributed systems. With a global view of the network, it provides the ability to quantify the behavior of the syste...