Literature Database Entry

zubow2026ns3sionna

Anatolij Zubow, Sascha Rösler and Falko Dressler, "Ns3Sionna: Realistic Wireless Network Simulation with Ray Tracing in ns-3," Proceedings of IEEE International Conference on Computing, Networking and Communications (ICNC 2026), Maui, HI, February 2026.

Abstract

Network simulators are essential tools for advancing wireless communication technologies, providing cost-effective, reproducible, and scalable environments for system evaluation. However, conventional simulators such as ns-3 rely on simplified statistical or stochastic channel models that inadequately represent physical propagation phenomena such as multipath fading, diffraction, and shadowing. We present Ns3Sionna, a framework that integrates a ray-tracing-based channel model implemented using the Sionna RT engine into the ns-3 network simulator. This integration enables environment-specific, physically accurate channel realizations for arbitrary 3D scenes and device configurations. Ns3Sionna also introduces a ray-tracing-based mobility model that ensures realistic node movement within complex indoor and outdoor environments. Compared with existing ns-3 models, Ns3Sionna produces more realistic path loss, fading and delay characteristics, exhibiting spatial and temporal correlations consistent with measured wireless channels. Fine-grained channel state information generated by the framework can further support sensing and localization research. To address the high computational complexity of ray tracing, Ns3Sionna leverages GPU and multi-core CPU parallelization together with intelligent pre-caching mechanisms based on channel reciprocity and coherence time. This approach enables practical, high-fidelity simulations for small- to medium-scale mobile wireless networks.

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Anatolij Zubow
Sascha Rösler
Falko Dressler

BibTeX reference

@inproceedings{zubow2026ns3sionna,
    author = {Zubow, Anatolij and R{\"{o}}sler, Sascha and Dressler, Falko},
    title = {{Ns3Sionna: Realistic Wireless Network Simulation with Ray Tracing in ns-3}},
    publisher = {IEEE},
    address = {Maui, HI},
    booktitle = {IEEE International Conference on Computing, Networking and Communications (ICNC 2026)},
    month = {2},
    year = {2026},
   }
   
   

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Last modified: 2026-02-18