Joint Network Emulator (JNE)


SCALABLE’s Joint Network Emulator (JNE) library is a live-virtual-constructive simulation platform for the development, test and evaluation of battlefield communications networks, applications and Netcentric systems. JNE provides a realistic network operational environment to test and evaluate performance at scale for a fraction of the cost of field exercises. The JNE GOTS library includes a complete set of Joint Tactical Radio System waveform models while JNE’s system-in-the-loop interfaces allow the integration of live equipment and network management tools. 

The JNE library and SCALABLE's EXata for JNE network modeling and simulation application provide military personnel and defense contractors with a high-fidelity LVC modeling and simulation environment to quickly and cost effectively plan battlefield network architectures and mission scenarios, and test new radios in operationally accurate contexts and "at scale" deployments, JNE includes the WNW, SRW, WIN-T, MUOs and other waveforms as well interfaces to CGF simulations and live hardware.The JNE library is in use across the military for planning, testing and training purposes and to simulate large sized military communications networks under a variety of conditions. This allows physical radios to connect and communicate with one or more radios simulated in JNE providing the ability to realistically simulate large size tactical radio networks and realize an at-scale operational tactical network laydown that consists of part live, part simulated radios by only using a few physical radio assets. The JNE library can also be used to develop, emulate and run a variety of simulated radio waveform models for use in  the testing, planning and training domains.

SCALABLE’s real-time network emulation technology is the basis of the JNE,  where users can create high fidelity models of legacy and modern/prototype waveforms and run these models in real-time for use in place of live radio assets, especially in situations where live radio assets are scarce and difficult or costly to obtain. The ability to run both experimental and legacy waveforms is critical for software-based radio systems such as JTRS. One of the radio’s key roles is to eliminate the need for multiple radios operating on different frequencies with a single radio capable of running existing waveforms and being loaded with new waveforms as they become available. 

History of the Joint Tactical Radio System (JTRS)

As the DOD’s wireless communications networks became more sophisticated and complex, the need grew for a modeling and testing system to search for potential bandwidth and scalability issues. This became especially necessary with the development and operational deployment of the military’s Joint Tactical Radio System (JTRS) family. These software-driven radios use a sophisticated set of waveforms for moving a variety of data across the battlefield. 

The Joint Tactical Radio System (JTRS) is an integrated effort to network multiple weapon system platforms and forward combat units where it matters most - at "the last tactical mile".  Deploying communications equipment based on the JTRS standards across the different branches of domestic and allied forces (and their civilian counterparts) enables reliable intra- and inter-service communications throughout dynamic environments (such as battlefields or disaster areas). In order to be comprehensively compatible with the wide variety of "legacy" radio systems currently deployed by different services, the JTRS specifications are quite sophisticated using software-defined radio systems that cover dozens of waveforms (some of which are export-controlled under ITAR).

The JNE library "emulates" one or more JTRS-based radios.  What this means is that a live physical JTRS radio can interoperate with the JNE, communicating back and forth exactly as if they were both live radios transmitting and receiving over the air.  The user of the live JTRS radio cannot tell that they are actually communicating with a simulation. The most significant benefit of this capability is that the JNE library provides a high fidelity, highly realistic construct of many systems all in a simulated virtual environment.  This is a tremendous advantage to technical developers and operational managers who cannot yet afford to acquire any significant number of live systems, but who still have mission objective to meet.

Examples of this capability have been demonstrated on several occasions at various Network Integration Evaluation (NIE) exercises where a JNE deployment enabled a small number of participants with live JTRS radios, interoperating with a very large simulated environment, to experience exactly how this emerging communications technology will perform under true battlefield conditions. 


The JNE  library of  network communications models and interfaces built on top of SCALABLE's EXata emulation platform.  The JNE library is available at no charge to approved government organizations and defense contractors.  Use of JNE requires a commercial license for the EXata platform, available directly from SCALABLE.

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