Last updated: June, 2026
NetSim is the leading tool for packet-level simulation of communication networks, used by thousands of engineers and researchers worldwide. The Professional edition is built for industry and defence: it gives access to the full range of technology libraries, scales to thousands of nodes, and connects to real hardware, so teams can size, plan, and prototype networks before they are deployed.
Flagship technologies for industry and defence
Standards-based libraries with protocol source C code. Explore the full stack for each.
Full-stack 5G New Radio
End-to-end, packet-level simulation of 5G networks with system-level fidelity and link-level abstractions. Model the RAN and core, then study throughput, latency, and capacity.
- Devices: UE, gNB (omni and sector), 5G Core (SMF, AMF, UPF), per TS 23.501 and TS 23.502
- SA and NSA deployments (NSA options 4, 4a, 7, 7a)
- Massive MIMO and beamforming, gNB antenna counts up to 128
- Network slicing, carrier aggregation, FR1 and FR2 bands, numerologies and 256QAM
Non-terrestrial and satellite networks
Extend 5G/6G to space with LEO, MEO, and GEO layers. Model the satellite link, long propagation delay, and Doppler for non-terrestrial deployments.
- Orbits: LEO (160 to 2000 km), MEO (2000 to 35876 km), GEO (35786 km)
- 3GPP Release 17 NTN bands (FR1) and Release 18 NTN bands (FR2)
- Channel and geometry per TR 38.811 and TR 38.821
- Satellite Radio Interface on the feeder link, elevation-angle and path-loss analysis
Military and tactical radio
Model tactical communication networks under mobility and jamming, from the routing layer down to the waveform, across VHF, UHF, L-Band, and S-Band radios.
- Tactical MANET routing: OLSRv1 (RFC 3626), OLSRv2 (RFC 7181), AODV, DSR, ZRP
- DTDMA: Link 16 based TDMA with a GUI slot planner and waveform code rates 1/2 to 5/6
- Omni-directional and sector antenna models with configurable patterns
- Single-band jammer with configurable on and off times for anti-jam studies
More capabilities
Three more areas where NetSim Professional goes deep.
Underwater networks
Design and analyze underwater acoustic networks. Underwater Acoustic PHY with the Thorp propagation model, propagation delay from the speed of sound, and BPSK to 64-QAM modulation.
Explore underwater »Machine learning for networks
Generate data and train AI/ML algorithms at the system level. RAN use cases from MAC scheduling to beamforming, with Non-RT, Near-RT, and RT RIC feedback loops, analogous to the O-RAN E2 interface.
Explore AI / ML »Emulator
Connect NetSim to real hardware running live applications such as video, voice, and file transfer. Physical devices and the simulation interact as one system, for military radio and 5G testing.
Explore the emulator »Why NetSim Professional
What the Professional edition adds over Standard and Academic.
All technology libraries
Access to every NetSim technology library: 5G/6G, NTN, MANET, military radio, satellite comm, IoT, VANET, and more. Select the ones you need.
Network coverage and capacity studies
Plan deployments with coverage, capacity, throughput, latency, and PRB-utilisation analysis before rollout.
Scales to thousands of nodes
Simulate large, real-world networks with high fidelity, from dense urban RAN to wide-area tactical and satellite scenarios.
Protocol source C code
Ships with protocol source code in C. Modify the stack and write your own algorithms, with source access on request.
Connect to real hardware
The NetSim emulator add-on links the simulator to real devices running live applications.
Advanced utilities
Batch execution of hundreds of runs, a multi-parameter sweeper, and a large-scenario generator for automated studies.
Enterprise licensing
Perpetual or annual, node-lock or floating, cloud or on-premise. Assemble the libraries you need.
Priority support
Priority technical support and direct access to the engineering team for production and defence programmes.
What your organization gains
Network R&D, accelerated from first model to validated design.
Boost R&D productivity
Build on validated models, integrated analysis tools, and protocol source code, so your team spends its time on the novel part of the work, not the plumbing.
Validate before production
Test technologies and network designs in realistic scenarios before committing to hardware or field deployment.
Reduce time to market
Develop and prove designs faster, and demonstrate their value to management, partners, and customers.
Specialized Services
We also offer simulation services. Visit our Services page.
Evaluate NetSim Pro
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