In this paper we show how a typical random lifetime ( n  ) of an n -hop path in Vehicle Ad Hoc Network (VANET) is a function of the number of hops that it contains. An experiment-based random process is modeled using Omnet++, obtaining a reliable probability distribution of the network’s lifetime as a function of n . A realistic Manhattan Grid Mobility Model combined with a simplified AODV rou...

We propose a simulation environment for networks for Wireless Multimedia Sensor Networks (WMSNs), i.e. networks with sensors capturing complex vectorial data, such as for example video and audio. The proposed simulation environment allows us to model the communication layers, the sensing and distributed applications of a WMSN. This Wireless Simulation Environment for Multimedia Networks (WiSE-M...

Nowadays Wireless Networks have an important impact in many activity domains. Due to the hardware and bandwidth limitations of these networks, resource allocation represents an important issue, being in the same time a very active research area. Considering the complexity of the wireless networks, analytical solutions are hard to be found. Hence, simulation becomes the most used methodology and...

In this paper, we introduce our Message Passing Interface (MPI) based Object-Oriented parallel discrete event simulation framework. The framework extends the capabilities of the OMNeT++ simulation system. In conjunction with this project, our research efforts also include the development of synchronization methods suitable for architectural properties of the distributed-memory and shared-memory...

This paper presents a robust simulation environment targeted for researching the complex dynamics of wireless computer networks. The general-purpose DEVS-Suite simulator supports animation with I/O and state trajectories of wireless computer network models developed using parallel DEVS modeling approach. The simulator offers highlevel model abstraction as compared with simulators such as ns-2, ...

This paper uses an inteqxetivist research strategy to investigate learning in the network form of organisation. It considers the use of an electronic communication SyJtem supporiing a disbibuted WOI~ process to eqlore an evolving electronic social space. A cognitive perspective on leamin emerge on the electronic grou meetings of a network form, E is used to identify patterns of behaviour that O...

In this paper we present a novel peer-to-peer system specifically designed to support the unique properties of traffic information systems. We discuss important design decisions, such as update strategies and algorithms for dynamic vehicular route planning. Our system is then assessed using a combination of network (OverSim/OMNeT++) and road traffic (SUMO) simulators. We discuss the network loa...

This paper presents an OMNeT-based Framework to simulate large complex storage networks, with its corresponding underlying subsystems (I/O, Networking, etc.). With this Framework, custom environments can be configured and deployed on a flexible and easy way. The most interesting features of this Framework are its flexibility and scalability, so the simulation of distributed storage environments...

The INET framework for the simulation tool OMNeT++ provides a TCP module, which can be used for evaluating various Internet applications. However, the implementation of this TCP module has not been state of the art. Some important features of modern TCP implementations – particularly Selective Acknowledgements (SACK) and a complete Flow Control – have been missing. In this paper, we first intro...

The purpose of data-link layer discovery protocols is to provide the network administrator with the current information (i.e., various Layer 2 and 3 parameters) about neighbor devices. These protocols are invaluable for network monitoring, maintenance, and troubleshooting. However, they start to play an important role in the operation of data-centers and other high-availability networks. This p...