BRISC: A Dataset of Channel Measurements With a Reflective Intelligent Surface at 5 GHz

This repository contains: antennaLog_posX.mat: refers to the CSI acquisition with the log-periodic antenna (X indicates the position index of the TX antenna) antennaDipole_posX.mat: refers to the CSI acquisition with the dipole antenna configurations_10000: the 10k RIS configurations used represented in hexadexial values. The The structure of the files is as follows: -csi: an array of complex values with size [subcarrier_N x frame_N]. Specifically, frame_N is the number of total frames correctly processed at this position, while subcarrier_N is the number of subcarriers (242) - confStr: an array of strings with size [frame_N x 1]. The i-th string indicates the configuration associated with the i-th extracted CSI. - confId: an array with size [1 x frame_N]. This is similar to confStr because the i-th element is associated with the i-th processed CSI. However, each element is a number between 1 and 10k, which positionally identifies the configuration from the `configurations_10000.mat`. - sqn: an array indicating, for each processed CSI, the sequence counter extracted from the Wi-Fi frame. This is a value between 0 and 4095. - coarsets: reception timestamp. --- Example If you want to get all the CSI values associated with configuration number 1000, find the indices of all the elements in confId equal to 1000, and select the corresponding columns from the CSI matrix (each column is a CSI with 242 subcarriers). Explanations relative to measurement setup, configurations choice etc. are available at: @misc{piana2026briscdatasetchannelmeasurements, title={BRISC: A Dataset of Channel Measurements at 5 GHz With a Reflective Intelligent Surface}, author={Mattia Piana and Giovanni Angelo Alghisi and Anna Valeria Guglielmi and Giovanni Perin and Francesco Gringoli and Stefano Tomasin}, year={2026}, eprint={2602.21102}, archivePrefix={arXiv}, primaryClass={eess.SP}, url={https://arxiv.org/abs/2602.21102}, } Scripts used to process the data and attain the results in [1] are available at: https://github.com/MattiaP1999/BRISC_RIS_dataset_scripts本仓库包含以下内容： 1. `antennaLog_posX.mat`：指代采用对数周期天线进行的信道状态信息（Channel State Information, CSI）采集流程，其中X表示发射（Transmit, TX）天线的位置索引。 2. `antennaDipole_posX.mat`：指代采用偶极子天线进行的CSI采集流程。 3. `configurations_10000`：该文件包含10000种可重构智能表面（Reconfigurable Intelligent Surface, RIS）配置，以十六进制数值形式表示。 数据集文件的内部结构如下： - `csi`：复数值数组，维度为`[subcarrier_N × frame_N]`。其中，`frame_N`代表当前天线位置下成功处理的总帧数，`subcarrier_N`为子载波数量（固定为242）。 - `confStr`：维度为`[frame_N × 1]`的字符串数组。第i个字符串对应第i条提取出的CSI所关联的RIS配置信息。 - `confId`：维度为`[1 × frame_N]`的数组。其功能与`confStr`类似，第i个元素与第i条处理后的CSI相对应；每个元素为1至10000之间的整数，可通过该索引从`configurations_10000.mat`中定位对应的RIS配置。 - `sqn`：用于记录每条处理后的CSI对应的Wi-Fi帧中提取出的序列计数器，取值范围为0至4095。 - `coarsets`：接收时间戳。 --- 示例 若需获取与编号1000的RIS配置关联的全部CSI数据，可先检索`confId`数组中所有值为1000的元素的索引，再从CSI矩阵中选取对应列（每一列代表一组包含242个子载波的CSI数据）。 关于测量装置、配置选型等相关细节的说明可参阅以下文献： bibtex @misc{piana2026briscdatasetchannelmeasurements, title={BRISC: A Dataset of Channel Measurements at 5 GHz With a Reflective Intelligent Surface}, author={Mattia Piana and Giovanni Angelo Alghisi and Anna Valeria Guglielmi and Giovanni Perin and Francesco Gringoli and Stefano Tomasin}, year={2026}, eprint={2602.21102}, archivePrefix={arXiv}, primaryClass={eess.SP}, url={https://arxiv.org/abs/2602.21102}, } 用于处理本数据集并复现上述文献结果的脚本可从以下地址获取： https://github.com/MattiaP1999/BRISC_RIS_dataset_scripts