CTTC is proud to hold the next Workshop on ns3 open-source initiative. World leading experts on network simulation tools, ns-3 maintainers, ns-3 developers, together with networking simulation practitioners and users will gather at CTTC next June 2024 to discuss new simulation models, technical design and implementation aspects, validation models, integration with emulators or real-life frameworks. In addition to the Workshop, training and tutorial sessions will be held, as well as developer meetings and the annual ns-3 Consortium meeting. As leaders of the ns-3 nr module (aka 5G-LENA), CTTC will provide a seminar on the NR (5G) module. See details in: https://www.nsnam.org/research/wns3/wns3-2024/