Three-dimensional Scanner for Multipath Fading Measurement

Abstract

In order to design the indoor internet of things (IoT) applications such as smart buildings, it is crucial to understand the propagation characteristics of the indoor environments. To this end, we implement the three-dimensional (3D) scanner with the size of 1.5 × 1.5 × 1.5 m (movable range of approximately 1.3 × 1.3 × 1.3 m). We can obtain the multipath fading variation precisely within the 3D scanner. We present the received signal strength indicator (RSSI) measurement results employing LoRa modules in the magnetic shield room. The measurement results indicate its accurate measurements and effectiveness of the implemented 3D scanner for multipath fading.