MobiHoc'23 SWIRLS

Step 1: Unzip Data

Unzip Data.zip for all the received Wi-Fi packet waveforms in 802.11n (high throughput) with

1. Different low sampling rates $f_s$ and their corresponding carrier frequency distances $\Delta f$;
2. Different SNR levels.

Step 2: Perform SWIRLS

In MATLAB, run main_LSIG.m to decode the LSIG, including the packet property of

1. Transmission time (12 bits)

In MATLAB, run main_HTSIG.m to decode the LSIG, including the packet property of

1. Modulation and Coding Scheme (5 bits)
2. Bandwidth (1 bit)
3. PSDU Length (16 bits)

Reference

If you find our work useful in your research, please consider citing our paper:

@inproceedings{gao2023swirls,
  title={Swirls: Sniffing {Wi-Fi} using radios with low sampling rates},
  author={Gao, Zhihui and Chen, Yiran and Chen, Tingjun},
  booktitle={Proc. ACM MobiHoc'23},
  year={2023}
}

If you have any further questions, please feel free to contact us at :D

zhihui.gao@duke.edu