IP multicast is nowadays a common network technique for communication and data delivery between senders and a large set of receivers. It could be argued that multicast is not generally supported by ISPs yet it became a standard for media streaming, distributed computing, financial applications and many others [1]. There is a need for suitable modeling and simulation tools supporting multicast r...

intrusion detection in wireless networks has been a challenging researchproblem in network security for more than half a century. this paper presents anovel intrusion detection method based on received signal strength acceptancetest (rssat) to improve the ids capabilities in anomaly-based host-basedintrusion detection systems (hids). the new system can identify suspiciousbehaviors detecting ano...

In this paper, we compare the use of two packet models in slotted optical ring networks: a model where each packet has to be routed in consecutive slots, and a model where the slots that form a packet can be routed independently. We first focus on the algorithmic complexity of the related problems. Then, we give the results we obtain with an OMNET simulator in terms of packets’ overdelay and ji...

Recently there has been growing interest in providing fine-grained metering and control of living environments using low power devices. Wireless Sensor Networks (WSNs), which consist of spatially distributed self-configurable sensors, perfectly meet the requirement. Since running real experiments is costly and time consuming, simulation is essential to study WSNs, being the common way to test n...

Network testbeds are limited and often hard to configure. One method of overcoming these limitations is to use network simulators for extending a testbed. This paper aims to find out which network simulator is best able to extend a network testbed. Simulators are compared by their ability to provide a proposed environment in a network testbed. Both objective and subjective criteria are used in ...

This paper introduces the new Real-Time Media Flow Protocol (RTMFP) simulation model for the INET framework for the OMNeT++ simulation environment. RTMFP is a message orientated protocol with a focus on real time peer-topeer communication. After Adobe Inc. released the specifications, we were able to implement the protocol in INET and compare its performance to the similar Stream Control Transm...

By means of a simple OMNeT++ simulation scenario, which uses parallel streams of random numbers, we want to point out several technical pitfalls when applying different random number generators and using different initialization values for them. We describe shortcomings of the built-in random number generator (RNG) and describe traps when using modern RNGs. Quantitative and qualitative analyses...

Recent advances in the field of video communications have increased the need for the simulation of security-related scenarios. This paper presents the philosophy, motivation and design choices that led to the implementation of SimViKi, a tool for simulating contemporary video communication systems. SimViKi leverages the best aspects of other popular simulation tools, particularly OMNeT++ and MA...

Optical Burst Switching (OBS) is an optical switching technology capable of supporting large demands for bandwidth in optical backbones with Wavelength Division Multiplexing (WDM). This paper presents an OBS simulation model for the discrete event simulator OMNeT++. The performance of this model is compared with the performance of the well-known INET simulation model for IP networks. Both model...

IEEE 802.11g has become the de facto standard for Wireless LAN. Most of the 802.11g functionality is implemented in hardware or firmware; modifying or extending such communication protocols is a difficult task. In this paper, we present modifications to the Omnet++ simulation environment to support an accurate IEEE 802.11g MAC and PHY simulation model. A solution for debugging the proposed mode...