NetSim Standard

Network R&D for universities

Build, simulate and analyze networks faster than with script-based and open-source tools. Each protocol ships with C source code that you can modify and extend.

5G / 6G IoT / WSN MANET / VANET
NetSim · 5G HetNet
NetSim GUI showing a dense 5G heterogeneous network with many gNBs, UEs, and 5G Core
LTE_NR / LTENR_PF_RG_Schedular.c
/* 5G NR Proportional-Fair scheduler: allocate PRBs across UEs */
static void PFS_RG_DoAllocation(ptrLTENR_UESCHEDULERINFO list,
                                UINT totalPRBAvailable, UINT sliceId)
{
    ptrLTENR_UESCHEDULERINFO current = list;
    while (current && totalPRBAvailable > 0)
    {
        if (!IsUEPartOfStaticSlice(current->ueId, sliceId)) goto NEXTUE;
        if (current->bitsPerPRB == 0) goto NEXTUE;     // UE out of coverage
        UINT prb = min(GetPRBRequired(current), totalPRBAvailable);
        current->allocatedPRBCount += prb;
        totalPRBAvailable -= prb;
    NEXTUE:
        current = current->next;
    }
}

Last updated: Oct 2026

Universities need tools that make research faster. NetSim Standard is a structured, validated platform for fast experiments. Design networks in a GUI, extend them in C source, and analyze results without parsing scripts.

NetSim vs script-based simulators

Do the same study without the scripting overhead of open-source tools.

Task NetSim Standard Open-source simulators
Scenario design Drag-and-drop GUI: place devices, draw links, and assign applications in minutes. Write hundreds of lines of script for each scenario.
Results analysis Integrated dashboard with sortable tables and exportable graphs. No post-processing. Manually parse multi-megabyte trace files.
Visualization Built-in packet animator and plots, directly from the results window. Write external programs for animation and graphs.
Custom code Protocol C source and documentation, ready to extend. Read thousands of lines of C just to understand it.
Debugging Online debugging: attach and watch each variable in Visual Studio. Rely on scattered printf statements.
Interfacing Inbuilt interfaces to Python, MATLAB, SUMO, and Wireshark. Spend days building custom links to external tools.

From design to insight

A study runs end to end in one environment.

1

Design

Place nodes, links and applications visually. Auto-place them, or import coordinates from a file.

2

Configure

Tune the full stack, APP to PHY, with protocol settings for each device.

3

Simulate

Run interactively, or in batch through the CLI for parameter sweeps with repeatable seeds.

4

Analyze

Read the end-to-end KPIs (throughput, delay, jitter and delivery ratio) in the dashboard.

5

Visualize

Trace flows with the packet animator and plot metrics over time.

Featured research areas

One platform covers the domains in which universities publish.

5G / 6G

5G / 6G NR

AI/ML in the RAN, MIMO, beamforming, network slicing, link adaptation, mobility and handover.

Explore 5G / 6G »
IoT

Internet of Things

6LoWPAN design, RPL routing and attacks, DODAG formation, IoT security and energy management.

Explore IoT »
WSN

Wireless sensor networks

Energy-efficient routing, clustering, LEACH and localization over IEEE 802.15.4.

Explore WSN »
Cognitive radio

Cognitive radio networks

Spectrum sensing and incumbent detection, spectrum allocation and interference analysis.

Explore cognitive radio »
MANET

Mobile ad hoc networks

Power-aware and location-based routing, sinkhole attacks and intrusion detection.

Explore MANET »
VANET

Vehicular networks

V2V and V2I communication, mobility models with SUMO, connectivity, clustering and routing.

Explore VANET »
Developing algorithms in NetSim is 10 times faster than developing in open-source tools. Trying different scenarios, filtering and plotting output data, batch running simulations, and interfacing with external tools are all integrated, robust, and commercially validated.
Dr. Shankar SriramSASTRA University, India

What your research gains

Go from the first scenario to a result that you can defend in review.

Speed

Accelerate research

Build on validated models, integrated analysis and C source. Your time then goes to your contribution, not to the tools.

Rigor

Reproducible experiments

Profiles, seeds, and scenario variants make runs repeatable for papers and peer review.

Confidence

Publish with confidence

Use commercially validated models and exportable results that you can defend.

Independent validation

200+ papers. The journals researchers trust.

Researchers worldwide publish NetSim-based results in the main journals and conferences of the field.

200+
Papers using NetSim
80+
IEEE
60+
Springer
19
Elsevier
Published in IEEE Springer Elsevier Wiley ACM MDPI arXiv

Evaluate NetSim Standard

Do you want to evaluate NetSim Standard for your lab? Do you have questions?