Network Simulator
ns-3 is a discrete-event network simulator for Internet systems, targeted primarily for research and educational use. ns-3 is free, open-source software, licensed under the GNU GPLv2 license, and maintained by a worldwide community.
Recent News (Older)
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ns-3.49 released
ns-3.49 has been released, due to contributions from twenty-three authors. This release adds inter-UE spatial consistency and large-bandwidth/large-antenna-array modeling (3GPP TR 38.901 Sec. 7.6) to the 3GPP channel and propagation models. The 3GPP channel model is also 8-11x faster per link and has many correctness fixes.
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ns-allinone-3.48 released
A new ns-allinone release, following the June ns-3.48 release has been published. The ns-allinone release series bundles compatble extension modules with the mainline ns-3 release. This release includes fifteen compatible contributed modules, including three recently updated modules.
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ns-3.48 released
ns-3.48 has been released, due to contributions from twenty-four authors. This release adds mobility model support for low-earth orbiting (LEO) satellite constellations, 6LoWPAN Neighbor Discovery models, a Sionna RT channel model for supporting ray-traced phased-array propagation modeling, and Wi-Fi models for Power Save mode and a new round-robin MAC queue scheduler.
Announcements
The 2026 International Conference on ns-3 (ICNS3) will be held from October 19-21 at the University of Naples Federico II.
- Registration is now active.
- Program is available.