Developing parallel network simulations is a complex task. Besides getting the model right, developers of parallel simulations are striving for an additional design goal: Performance. We argue that developers need an insight into the behavior of a simulation model in order to assess and optimize its parallel performance. Specifically, given a parallel simulation model, it is imperative to ident...

The aim of this paper is to provide an overview of the IEEE802.11b simulation model implemented by using OMNet++ simulation framework. The model is suitable for performance evaluation and investigation of wireless networks. There are two main state patterns which are part of the model specifying the CSMA/CA procedure and frame exchange sequences between stations. These are critical major sectio...

Optical Burst Switching (OBS) es una nueva tecnología de conmutación óptica capaz de soportar una gran demanda de ancho de banda en backbones ópticos con Wavelength Division Multiplexing (WDM). Muchos investigadores están interesados en el estudio de esta propuesta emergente y la búsqueda de sus parámetros y entornos de funcionamiento óptimos. Sin embargo se encuentran con el gran handicap de q...

The article proposes a language for the description of model topologies in discrete event simulators. The language contains an efficient way to create parametrized, flexible topologies. The language has been implemented as part of the OMNeT++ simulator. In most simulators, the support for defining the topology of the model can be improved upon. For this task, simulators either (1) do not provid...

Harris Corporation has an interest in making HF radios a suitable medium for wireless information networks using standard Internet protocols. Although HF radio links have many unique characteristics, HF wireless subnets can be subject to many of the same traffic flow characteristics and topologies as existing line-of-sight (LOS) radio networks, giving rise to similar issues (media access, conne...

Modeling of correlated traffic processes is a challenge in simulation modeling but is necessary to obtain realistic simulation models of many computer or communication networks. We present a new simple module denoted as ArrivalProcess to be included as a traffic source in OMNeT++ simulation models. The new traffic source supports different stochastic process models which are defined using a XML...

The data transmission by high-speed optical networks has upward trend. Various techniques of multiplexing are used in optical communication networks to satisfy growing demands. Wavelength division multiplexing is currently mostly used multiplex method due to its great advantages. Since the current optical communication networks are based on internet protocol, the optical burst switching present...

The General Internet Signaling Transport (GIST) protocol was specified by the IETF in order to provide a generic transport protocol for signaling messages. A group at the Institute of Telematics implemented the GIST protocol and evaluated it already in smaller testbed setups. An evaluation of GIST in large-scale scenarios can, however, only be accomplished by using a simulation framework. In th...

Wireless Sensor Networks (WSN) are receiving growing attention in the research community. As simulation is a frequently used to test and validate the different approaches, the flexibility of the simulation environments to support the varied WSN schema is desirable. The multitude works regarding WSN in general [7, 8], and OMNeT++ [1, 2, 5, 6] in particular, confirm the rising interest in providi...

Wi-Fi Direct is a popular wireless technology which is integrated in most of today’s smartphones and tablets. This technology allows a set of devices to dynamically negotiate and select a group owner which plays the role access point. This important feature is the strength of Wi-Fi Direct and makes it more and more widely used in telecommunications networks. In this paper, we present the implem...