SIG on Modeling and Simulation Tools - CSIM - IEEE ComSoc

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SIG on Modeling and Simulation Tools - CSIM - IEEE ComSoc

VanetMobiSim: A Generator of Realistic Vehicular Movement Traces for VANET

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The Vehicular Ad Hoc Networks Mobility Simulator (VanetMobiSim)  is an open source, java-based generator of realistic vehicular mobility traces. VanetMobiSim consistis of a microscopic and a macroscopic modeling layer.

The microscopic layer includes a car following model modeling a safe interdistance between vehicles for accident-free modeling. It also contains a detailed infrastructure interaction for which vehicles must follow speed limitations or for which an intersection modeling consisting of configurable traffic lights or stop signs forces vehicles to stop at intersection when required.

The macroscopic layer allows the modeling of activity-based trips between Points of Interests (PoI) and also different optimal paths between these PoI such as shortest-distance, fastest speed or lowest traffic. VanetMobiSim lets the user either create its own vehicular topologies, generate randomly generated maps or load realistic maps either in the US Census Bureau TIGER or in the European GDF standards.

VanetMobiSim outputs vehicular mobility traces in formats for NS-2 or Qualnet.

Please visite the following website for more information: http://vanet.eurecom.fr/ 

 

Vehicular Mobility Simulation for VANETs

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During the last few years, continuous progresses in wireless communications have opened new research fields in computer networking, aimed at extending data networks connectivity to environments where wired solutions are impracticable. Among these, vehicular traffic is attracting a growing attention from both academia and industry, due to the amount and impor- tance of the related applications, ranging from road safety to traffic control, up to mobile entertainment. Vehicular Ad-hoc Networks (VANETs) are self-organized networks built up from moving vehicles, and are part of the broader class of Mobile Ad-hoc Networks (MANETs). Because of their peculiar char- acteristics, VANETs require the definition of specific network- ing techniques, whose feasibility and performance are usually tested by means of simulation. One of the main challenges posed by VANETs simulations is the faithful characterization of vehicular mobility at both macroscopic and microscopic levels, leading to realistic non-uniform distributions of cars and ve- locity, and unique connectivity dynamics. In this paper we first present and describe VanetMobiSim, a freely available gener- ator of realistic vehicular movement traces for networks simu- lators.Then, VanetMobiSim is validated by illustrating how the interaction between featured macro- and micro-mobility is able to reproduce typical phenomena of vehicular traffic.

Fiore, M., Härri, J., Filali, F., and Bonnet, C. 2007. Vehicular Mobility Simulation for VANETs. In Proceedings of the 40th Annual Simulation Symposium (March 26 - 28, 2007). Annual Simulation Symposium. IEEE Computer Society, Washington, DC, 301-309. DOI= http://dx.doi.org/10.1109/ANSS.2007.44  

 

 

G-JSIM

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G-JSIM is a Guided User Interface for Wireless Sensor Networks (WSNs) simulation that uses J-SIM. The application features guided parameter input, parameter storage and retrieval from an XML file, creates the Tcl file and issues simulation. With this tool the user can simulate a WSN without any knowledge about Tcl language.

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Extended NAM: An NS2 Compatible Network Topology Editor for Simulation of Web Caching Systems

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Designing new network protocols for the Internet relies on the use of network simulation tools for validation. When simulation is aimed at testing the scalability of new protocols, working with large-scale realistic topologies is of paramount importance. In this paper we present an extension of the NAM Editor, a graphical editor to be used in conjunction with the well-known ns2 network simulator. Our extended NAM Editor allows the creation of synthetic but realistic network simulation scenarios and provides support for the simulation of web caching systems.
 

Object-Oriented Modeling and Simulation of Optical Burst Switching Networks

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Optical Burst Switching (OBS) is becoming an interesting technology for the optical Internet, since it does not need optical buffers like Optical Packet Switching (OPS), and is capable of a better performance than Optical Circuit Switching (OCS). Although OBS has been recently object of intense research, it still raises a number of important questions. Due to the high costs of an OBS network infrastructure, simulators are a good choice for predicting the behavior of this kind of networks. In this paper, we describe the proposal, implementation and validation of a simulator for OBS networks. The simulator, named OBSim, mimics the behavior of OBS networks in an Object-Oriented approach.

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