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README.md

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+---
+license: bsd-3-clause
+pretty_name: GRaF-sim
+tags:
+  - wireless
+  - radio-frequency
+  - spectrum
+  - neural-radiance-fields
+  - sionna
+  - arxiv:2502.05708
+task_categories:
+  - other
+size_categories:
+  - 10K<n<100K
+---
+
+# GRaF-sim — Simulated RF Spectrum Dataset
+
+Simulated wireless channel spectra for 18 indoor scenes, released with the CVPR 2026 paper
+**"Generalizable Radio-Frequency Radiance Fields for Spatial Spectrum Synthesis"** by
+Kang Yang, Yuning Chen, and Wan Du.
+
+📄 **Paper:** [arXiv:2502.05708](https://arxiv.org/abs/2502.05708) &nbsp;·&nbsp;
+💻 **Code:** [github.com/kangyang73/GRaF](https://github.com/kangyang73/GRaF) &nbsp;·&nbsp;
+🤖 **Models:** [kyang73/GRaF-pretrained](https://huggingface.co/kyang73/GRaF-pretrained)
+
+Used to train and evaluate **GRaF**, a generalizable radio field model.
+
+Each scene is modeled as a box room with ITU-material walls and furniture primitives. For
+every transmitter position, [Sionna](https://nvlabs.github.io/sionna/) ray-tracing computes
+the channel response at an 8 × 8 receiver array, and conventional beamforming over a
+360° × 90° azimuth–elevation grid produces the final spatial spectrum image.
+
+## Scenes
+
+Each category contains six scene variants with increasing furniture/clutter.
+
+| Category | Room              | Room size (m)     | Scenes      |
+|----------|-------------------|-------------------|-------------|
+| A        | Conference Room   | 8.0 × 6.0 × 3.0   | `D2`–`D7`   |
+| B        | Classroom         | 10.0 × 7.0 × 3.0  | `D8`–`D13`  |
+| C        | Bedroom           | 5.0 × 4.0 × 2.8   | `D14`–`D19` |
+
+## Per-scene layout
+
+```
+D<i>/
+├── gateway_info.yml   # room size + receiver (gateway) pose
+├── tx_pos.csv         # 5 340 transmitter positions (x, y, z)
+└── spectrum/
+    ├── 00001.png      # 360 × 90 grayscale spectrum (azimuth × elevation)
+    ├── 00002.png
+    └── ...            # one image per TX position
+```
+
+**Totals:** 18 scenes × 5 340 samples ≈ 96 K spectrum images, ~785 MB.
+
+## Download
+
+```python
+from huggingface_hub import snapshot_download
+snapshot_download("kyang73/GRaF-sim", repo_type="dataset", local_dir="data")
+```
+
+Or via CLI:
+
+```bash
+hf download kyang73/GRaF-sim --repo-type dataset --local-dir data
+```
+
+## Citation
+
+If you use this dataset, please cite:
+
+```bibtex
+@inproceedings{Yang2026_GRaF,
+  author    = {Kang Yang and Yuning Chen and Wan Du},
+  title     = {Generalizable Radio-Frequency Radiance Fields for Spatial Spectrum Synthesis},
+  booktitle = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
+  year      = {2026},
+}
+```
+
+## License
+
+Released under the BSD 3-Clause License. Copyright (c) 2025, Kang Yang, Yuning Chen, and
+Wan Du. See the [GRaF repository](https://github.com/kangyang73/GRaF) for full terms.