We are planning five days (June 26-30) of activities, as follows. This schedule is close to being finalized (check back later for updates).

All times listed are in Eastern Daylight Time (UTC-4). The meeting will generally run from 9:00am to 5:00pm.

Monday, June 26: NR Sidelink and V2X tutorials and discussions

9:00-10:30, Tutorial: NR C-V2X: ns-3 Operations, Validation, and Experimentation, Liu Cao and Collin Brady (University of Washington)

11:00-12:30, Tutorial: Recent Updates to NR Sidelink Sensing, Scheduling, and HARQ Models, Tom Henderson (University of Washington) and Samantha Gamboa (National Institute of Standards and Technology (NIST)/Prometheus Computing)

13:30-15:00, Tutorial: Proximity Services (ProSe) Support for 5G NR Simulations, Aziza Ben Mosbah and Samantha Gamboa (National Institute of Standards and Technology (NIST)/Prometheus Computing)

15:30-17:00, Panel discussion on 5G sidelink: Panelists will share their experiences or plans with 5G sidelink simulations, testbeds, or other related engineering activities.

Organizers: Sumit Roy (University of Washington) and Richard Rouil (NIST)


  • Tugba Erpek, representing the National Spectrum Consortium Working Group on Sidelink
  • TBD representative from Qualcomm
  • TBD representative from EpiSci

Tuesday, June 27: Various meetings, invited talks, and tutorials

9:00-10:00, Tutorial: Bridging ns-3 and O-RAN: a tutorial on ns-O-RAN, Andrea Lacava and Michele Polese (Northeastern University)

10:30-12:30, Invited talks: Invited talks related to AI/ML-based integrations with ns-3

  • NetAIGym: Democratizing “Network AI” Research & Development via Simulation-as-a-Service, Jing Zhu (Intel)
  • Integration of Machine Learning with ns-3: Challenges and Opportunities, Eduardo Nuno Almeida (INESC TEC and Faculdade de Engenharia, Universidade do Porto, Portugal)
  • Multi-BSS Wi-Fi Simulations in ns-3, Sumit Roy (University of Washington)

13:30-14:00, Invited talk: Signal Processing with NS3, Dr. Colin Funai, Dr. Bishal Thapa (Raytheon BBN)

14:00-15:00: Meeting with US National Science Foundation and industry regarding next steps for ns-3 funding

15:30-16:00: Invited talk: Using ns-3 for research on NTN, reinforcement learning-based scheduling, UAV networking, IPC, and dynamic spectrum access, Dr. Lingjia Liu and students (Virginia Tech)

16:00-17:00: Tutorial: Updates to the ns-3 NetSimulyzer, Evan Black (NIST)

Wednesday, June 28: WNS3 paper presentations and lightning talks

Introductions and keynote talk (9:00-10:00)

Keynote: Michael Welzl, University of Oslo: A TCP person’s ns-3 experience report

Abstract: I’m a TCP insider but an ns-3 outsider. A few years ago, I decided to use ns-3 for the first time because it seemed to be the best tool for my purposes - more suitable than ns-2, which I am used to, or real-life tests. This talk will get into both the good and bad sides of my ns-3 experience. First, I will elaborate on difficulties in getting a TCP “Hello World” to work, which, I hope, will shine a constructive light on possible improvements of either the code or the documentation, or both. Then, I will describe what we eventually managed to pull off with ns-3’s emulation capabilities, which I personally found to be an astounding testament of this simulator’s abilities.

Paper Session 1 (10:00-10:30): MIMO

  • Matteo Pagin, Sandra Lagén, Biljana Bojović, Michele Polese and Michele Zorzi, Improving the efficiency of MIMO simulations in ns-3

Paper Session 2 (11:00-12:30): Channel Modeling

  • Jingyuan Zhang and Douglas M. Blough, Implementation and Evaluation of IEEE 802.11ax Channel Sounding Frame Exchange in ns-3

  • Hitesh Poddar, Tomoki Yoshimura, Matteo Pagin, Theodore S Rappaport, Art Ishii and Michele Zorzi, ns-3 Implementation of Sub-Terahertz and MillimeterWave Drop-based NYU Channel Model (NYUSIM)

  • Mattia Sandri, Matteo Pagin, Marco Giordani and Michele Zorzi, Implementation of a Channel Model for Non-Terrestrial Networks in ns-3

Paper Session 3 (13:30-15:00): 5G and THz communications

  • Andrea Lacava, Matteo Bordin, Michele Polese, Rajarajan Sivaraj, Tommaso Zugno, Francesca Cuomo and Tommaso Melodia, ns-O-RAN: Simulating O-RAN 5G Systems in ns-3

  • Katerina Koutlia, Sandra Lagen and Biljana Bojovic, Enabling QoS Provisioning Support for Delay-Critical Traffic and Multi-Flow Handling in ns-3 5G-LENA

  • Farhan Siddiqui and Bikash Mazumdar Link Discovery Extension to NS-3’s Terahertz Communication Module

Short Papers and Invited Talk (13:30-15:00)

  • Juan V. Leon Rosas, Thomas R. Henderson and Sumit Roy, Verification of ns-3 Wi-Fi Rate Adaptation Models on AWGN Channels

  • Liu Cao, Lyutianyang Zhang and Sumit Roy, Efficient PHY Layer Abstraction for 5G NR Sidelink in ns-3

  • Aditya R Rudra, Sharvani Laxmi Somayaji, Satvik Singh, Saurabh Dhananjay Mokashi, Abhinaba Rakshit, Dayma Khan and Mohit P. Tahiliani, Linux-like Socket Statistics Utility for ns-3

  • Helder Fontes, Talk title TBD

Thursday, June 29: WNS3 paper presentations and lightning talks

Lightning Talks (09:00-10:30)

  • Alberto Gallegos Ramonet, Extending and Improving Personal Area Networks on ns-3

  • Gabriel Ferreira, ns-3 Performance and the SPEC CPUv8 Benchmark Suite

  • Gabriel Ferreira, Pip Packaging and Educational Use of ns-3

  • Jared Ivey, Towards Efficient Distributed Simulation of Next-Generation Wireless Use Cases in ns-3

  • Ang Deng, A Mobility Model Incorporating Obstacle Avoidance For Evaluation of Proactive Scheduling Algorithms in the mmWave Band

  • Gongbing Hong, ns-3 Implementation of ABB CoDel Queue Discipline

Paper Session 4 (11:00-12:30): Machine Learning and Applications

  • Wesley Garey, Tanguy Ropitault, Richard Rouil, Evan Black and Weichao Gao, O-RAN with Machine Learning in ns-3

  • Eduardo Nuno Almeida, Helder Fontes, Rui Campos and Manuel Ricardo, Position-Based Machine Learning Propagation Loss Model Enabling Fast Digital Twins of Wireless Networks in ns-3

  • Peter Detzner, Jana Gödeke, Lars Tönning, Patrick Laskowski, Maximilian Hörstrup, Oliver Stolz, Marius Brehler and Sören Kerner, SOLA: A Decentralized Communication Middleware Developed with ns-3

Paper Session 5 (13:30-15:00) Network and IoT models

  • Shengjie Shu, Wenjun Yang, Jianping Pan and Lin Cai, A Multipath Extension to the QUIC Module for ns-3

  • Rui Pedro Monteiro and João Marco Silva, Flexcomm Simulator: Exploring Energy Flexibility in Software Defined Networks with ns-3

  • Alberto Gallegos Ramonet, Alexander Guzman Urbina and Kazuhiko Kinoshita, Evaluation and extension of ns-3 battery framework

Ns-3 Consortium Annual Meeting (15:30-17:00)

The annual business meeting of the ns-3 Consortium.

Friday, June 30: Hackathon, coding sprints, developer discussions

Friday will be an informal day (mainly for in-person attendees) conducted as a hackathon or coding sprint, and discussions about fixing open issues in ns-3.