BLE Ray-Tracing Simulation Dataset

BLE ray-tracing propagation data generated via Altair Feko WinProp software in a simulation environment of dimensions 14m x 7m. Four horizontal facing APs are placed in the corners of the room at 2.5m height and at 45 degrees azimuth rotation pointing towards the center of the room. The elevation angle of all APs is 45 degrees pointing downwards. Three transmitting frequencies are simulated i.e., 2402, 2426 and 2480 MHz, corresponding to the three advertising BLE channels (numbered 37, 38 and 39, respectively) and two antenna polarizations (omni-directional), i.e., horizontal and vertical. The tag is positioned at a fixed height of 1.5 m (z-dimension) and 2450 signal samples are collected per room configuration, evenly distributed across the room. Data was collected for 9 different room configurations with varying furniture, furniture material and anchor points positions and orientation as shown below. <br> Room Setup Description testbench_01 No line-of-sight blocking furniture testbench_01_furniture_low One line-of-sight blocking furniture testbench_01_furniture_mid Three line-of-sight blocking furniture testbench_01_furniture_high Six line-of-sight blocking furniture testbench_01_furniture_low_concrete Same as low but with concrete furniture testbench_01_furniture_mid_concrete Same as mid but with concrete furniture testbench_01_furniture_high_concrete Same as high but with concrete furniture testbench_01_rotated_anchors Same as testbench_01 but the anchors have been rotated clockwise by 5 degrees testbench_01_translated_anchors Same as testbench_01 but the anchors have been translated by 10cm <br> For each room setup, data is split into 12 json files - 6 for the tag signal data collected from the 4 anchor points and 6 for the properties of each anchor point. The 6 different files correspond to the different channel-polarization combinations as indicated by their names. Each entry of the anchor json files contains the following information: anchor: anchor's index x_anchor, y_anchor, z_anchor: anchor point's coordinates az_anchor: anchor's horizontal rotation el_anchor: anchor's vertical rotation reference_power: received signal strength (RSS) reference value in dB Each entry of the tag json files contains the following information: anchor: anchor's index point: point's index x_tag, y_tag, z_tag: tag point's coordinates los: point is in line of sight of anchor {0=false,1=true} relative power: RSS value in dB pdda_input_real: in-phase components of the anchor's antennas' measurements pdda_input_image: quadrature-phase components of the anchor's antennas' measurements pdda_phi: pdda prediction for azimuth angle pdda_theta: pdda prediction for elevation angle pdda_out_az: pdda's spatial power spectrum for azimuth angle pdda_out_el: pdda's spatial power spectrum for elevation angle true_phi: actual azimuth angle true_theta: actual azimuth angle