WIFI6GHZDATASET/WiFi_6GHz_Dataset

Wi6CSI Dataset Overview

Wi6CSI is a comprehensive Wi-Fi sensing dataset collected in the 6GHz band. It offers a rich, high-resolution resource for researchers

Key Features

• Scenarios Covered:

  • Single User: Data captured with one user performing various activities.
  • Multi User: Data where multiple users are present simultaneously.
  • People Counting: Scenarios designed to count individuals within a specific area.

• Collection Locations:
  Data has been collected across three distinct locations, ensuring diverse environmental conditions and variations in the wireless channel.

• Data Volume and Resolution:

  • The dataset holds approximately 1.5TB of data.
  • Each Wi-Fi packet includes 8100 subcarriers, offering a level of detail that supports high-resolution sensing and analysis.

• Wi-Fi Band:

  • Utilizes the 6GHz frequency band, providing enhanced granularity and improved sensing accuracy compared to lower frequency bands.

Wi6CSI Sample Dataset

This repository contains a sample subset of the complete Wi6CSI dataset containing just a few single user activities. The sample is provided to demonstrate the dataset structure and typical processing steps for research in Wi-Fi Channel State Information (CSI) analysis. If you are interested in obtaining access to the complete Wi6CSI dataset or have any questions, please contact: e0426004@u.nus.edu

Dataset Contents

• .mp4 files:
  These files are Pose3D videos that capture 3D representations of subjects during data collection. They can be used for visual analysis, activity recognition, or correlating motion with CSI data.

• .mat files:
  These MATLAB files contain the Wi-Fi CSI values. The numerical data stored in these files represent the channel state information of the wireless signal, useful for signal processing or machine learning applications.

• .csi files:
  These files hold raw Wi-Fi CSI data. They are not immediately usable and must be parsed using the picoscenes toolbox to extract the relevant features for analysis.

How to View and Process Each File Type

1. .mp4 Files

• Description:
  These files contain Pose3D videos.
• How to View:
  Open them in any standard media player (e.g., VLC, Windows Media Player, QuickTime) by double-clicking the file or dragging it into the player window.

2. .csi Files

• Description:
  These files store raw Wi-Fi CSI data.
• How to Open/Parse:
  • Step 1: Install the PicoScenes MATLAB Toolbox.
  • Step 2: Open MATLAB and navigate to the directory containing the .csi file.
  • Step 3: Load or parse the file using the toolbox’s function. Found under the PicoScenes-MATLAB-Toolbox-Core folder
  • Step 4: The raw CSI values can then be accessed within the returned data structure for further analysis.

3. .mat Files

• Description:
  These files contain Wi-Fi CSI values in MATLAB’s native format.
• How to View:
  • Option 1: In MATLAB, double-click the .mat file in the Current Folder panel.
  • Option 2: Programmatically load the file by running. For example:

    load('A12_P5_L3_T1.mat');
    

    After loading, variables such as data (often containing a field like data.CSI.CSI) will appear in your MATLAB workspace for exploration. The data.CSI.CSI will then contain all raw complex CSI values.

Single User Activity Recognition Structure

Activity
Empty Room (A1)
Standing Still (A2)
Sitting Still (A3)
Lying Down Still (A4)
Clap (A5)
Wave (A6)
Arm Circles (A7)
Bicep Curls (A10)
Toe Touches (A8)
Squats (A9)
Walk (Perpendicular) (A11)
Walk (Parallel) (A12)
Jump (A13)

Location
Room (L1)
Extended Room (L2)
Meeting Room (L3)

Trial Number
Trial 1 (T1)
Trial 2 (T2)
Trial 3 (T3)
Trial 4 (T4)
Trial 5 (T5)

Participant Number
Participant 1 (P1)
Participant 2 (P2)
Participant 3 (P3)
Participant 4 (P4)
Participant 5 (P5)