In this article, we present two datasets that we make publicly available for research. The data is collected in a testbed comprised of a custom-made reconfigurable intelligent surface (RIS) prototype and two regular orthogonal frequency-division multiplexing (OFDM) transceivers within an anechoic chamber. First, we discuss the details of the testbed and equipment used, including insights about the design and implementation of our RIS prototype. We further present the methodology we employ to gather measurement samples, which consists of letting the RIS electronically steer the signal reflections from an OFDM transmitter toward a specific location. To this end, we evaluate a suitably designed configuration codebook and collect measurement samples of the received power with an OFDM receiver. Finally, we present the resulting datasets, their format, and examples of exploiting this data for research purposes.

中文翻译：

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Sub-6GHz 可重构智能表面的开放实验测量

在本文中，我们展示了两个可供公开研究的数据集。数据收集在一个测试台中，该测试台由定制的可重构智能表面 (RIS) 原型和消声室内的两个常规正交频分复用 (OFDM) 收发器组成。首先，我们讨论所用测试台和设备的详细信息，包括有关 RIS 原型设计和实现的见解。我们进一步介绍了用于收集测量样本的方法，其中包括让 RIS 以电子方式将 OFDM 发射机的信号反射引导至特定位置。为此，我们评估了适当设计的配置码本，并使用 OFDM 接收器收集接收功率的测量样本。最后，我们展示了生成的数据集、它们的格式以及利用这些数据进行研究的示例。