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GenetScope/NETSIM2 is a worldwide network model/simulation of the High Frequency Global Communications System (HFGCS). The model provides Automatic Link Establishment, Propagation, Mobile users, and traffic capabilities.
The Joint Interoperability Test Command (JITC) High Frequency Test Facility (HFTF) is responsible for developing the second-generation network model for the HF Global Communications System.
JITC has tasked Northrop Grumman Information Technology (NGIT) to develop NETSIM 2. Subsequently, NGIT partner, the University of Arizona, and the Arizona Center for Integrative Modeling & Simulation (ACIMS) has developed the model.
GenetScope is an object-oriented discrete-event modeling and simulation (M&S) environment that supports simulation and analysis of voice and data communication scenarios for the High Frequency (HF) Global Communications System (HFGCS). The application runs on Java™-based platforms, including both Windows and Linux, and allows a user to model a wide range of HFGCS communications and connectivity operations through its own graphical user interfaces. GenetScope not only improves implementation of the original Automatic Link Establishment protocol in its predecessor, NetSim SC, but also provides the advanced M&S framework, Discrete-Event System Specification (DEVS), for HF network models to be reusable and scaleable systematically by adding more complex functionalities and protocols throughout the future development cycle.
The earlier NetSim version (developed in 1997) was used to analyze any given scenario, whether past or future, based on Ionospheric Communications Enhanced Profile Analysis and Circuit Prediction Program (ICEPAC) prediction data. The current version aims to take a quantum leap by providing the capabilities that not only analyze any scenario, but also provide a recommendation to redesign the SCOPE Command itself.
The underlying DEVS theoretical framework, with its advanced features of real-time simulation visualization and ability to configure simulation on-the-fly, gives the analyst the power to understand the impact of any design parameter and how the system transitions to the new parameter set in real time without restarting the simulation. This aids in changing the corresponding parameter in the deployed SCOPE Command system because the analyst can study the transition effects. This capability was recently developed and is unique to the DEVS framework.
DEVS, with its Experimental Frame, helps to focus the top-level design issues, like how many ground stations are best, how many internal levels are minimally needed, what is the capacity of the system, or what is the threshold Signal-to-Noise Ratio (SNR) that the system needs to continue to perform, optimally. This current version of GenetScope, Version 2.x.x, has added antenna detail, littoral/ground-wave calculations, and radio profiles.
Note: Java is registered trademark of Sun Microsystems, Inc., in the United States and other countries.
Note: DEVSJAVA, Copyright 2002 Arizona Board of Regents on behalf of The University of Arizona.
Additional information on ACIMS can be found at acims.arizona.edu
Animation Screen with a link highlighted
Littoral Upgrade – At the request of SPAWAR, littoral operations were added to the GenetScope model. This upgrade included ground wave modeling for ranges up to 300 miles and 5 terrain segments. Additionally, more details were added to support selection and use of different antenna types.
Littoral View
Ground Wave versus Skywave SNR Screen
The download of the GenetScope/NETSIM2 is restricted to the authorized Government users.
The GenetScope/NETSIM2 software package contains copywrited material and cannot be used for commercial purposes with out the release by the University of Arizona.
* (requires access to JITCs Joint Interoperability Tool website)
The GENETSCOPE manuals and software are also maintained on the HFGCS COMMUNITIES OF PRACTICE WEBSITE.
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