Radio-frequency WLAN data frame recordings from a common off-the-shelf laptop

This dataset contains IQ-baseband recordings of data frames transmitted from a Lenovo Thinkpad T470s. A program called Scapy was used to force the WLAN chip (Intel 8265NGW) of the laptop to send a data frame with a fixed bit payload on repeat. The measurements were conducted in the anechoic chamber located at the Tampere University's Hervanta campus. The dataset contains 10 repeat recordings with MCS indices 3,5,6 and 8. The WLAN bandwidth was 20 MHz on channel 12, corresponding to center frequency of 2.467 GHz. The recordings were made with a vector signal transceiver PXIe-5840 by National Instruments. The sampling frequency in all recordings was 200 MHz with a recording length of 20e6 samples, corresponding to a recording period of 100 ms. All recordings are provided in a binary format. More specifically, the data is interleaved (I1 Q1 I2 Q2 I3 Q3 ...) in little-endian 64-bit floating point format. A matlab function is provided for converting the binary data in a file to a complex float vector. Additionally, a simple Matlab example script is provided to showcase how the data can be used to plot a spectrogram.

本数据集包含从联想ThinkPad T470s笔记本发送的数据包帧的同相正交基带（IQ-baseband）录制数据。研究人员借助名为Scapy的程序，强制该笔记本的无线局域网（WLAN）芯片（英特尔8265NGW）循环发送携带固定比特载荷的数据包帧。本次测量在坦佩雷大学赫尔万塔校区的消声室内完成。本数据集包含10组重复录制样本，对应调制编码方案（MCS，Modulation and Coding Scheme）索引3、5、6和8。本次实验的无线局域网带宽为20 MHz，采用第12信道，对应中心频率为2.467 GHz。所有录制数据均由美国国家仪器（National Instruments）的矢量信号收发仪PXIe-5840采集完成。所有录制样本的采样率均为200 MHz，录制时长为20×10^6个采样点，对应录制周期为100 ms。所有录制数据均采用二进制格式存储。具体而言，数据以小端序（little-endian）的64位浮点格式进行交错存储，格式为(I1 Q1 I2 Q2 I3 Q3 ...)。我们提供了一款MATLAB函数，可将文件中的二进制数据转换为复浮点向量。此外，我们还附带了一份简单的MATLAB示例脚本，用于演示如何利用该数据绘制频谱图。