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-3.48 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.
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ns-allinone-3.47 released
A new ns-allinone release, following the February ns-3.47 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-3.47 released
ns-3.47 has been released, due to contributions from twenty-eight authors. This release adds new traffic generators from the IEEE 802.11ax evaluation methodology, support for TCP Forward Acknowledgement, and improvements to 3GPP propagation models for outdoor-to-indoor penetration losses.
Announcements
The 2026 International Conference on ns-3 (ICNS3) will be held from October 19-21 at the University of Naples Federico II. Revised paper submission deadline is May 31.
- Proceedings are now available for ICNS3 2025. Many thanks to everyone who made it happen!
