Experiment details
Authors : Adrien van den Bossche, Réjane Dalcé, Thierry Val
This document presents the dataset 20210331-ble-rssi.json used in the experiments presented in the paper Adrien van den Bossche, Réjane Dalcé, Thierry Val. LocURa4IoT - A testbed dedicated to accurate localisation of wireless nodes in the IoT. IEEE Sensors Journal, Institute of Electrical and Electronics Engineers, 2022, 22 (6), pp.10.1109/JSEN.2021.3133066. ⟨hal-03466307⟩
The experiment has taken place on March, 31st 2021 on the LocURa4IoT testbed. Dataset is under ODbL licence.
Scenario description
Please refer to the paper for the full experiment description.
Dataset description
The dataset is a JSON file. Each line is the output of a ranging. The JSON dictionary is detailed in the following table:
| key | description | example |
|---|---|---|
| initiator | Message broadcaster in the RSSI-based ranging scheme | 183 |
| target | RSSI estimating node in the RSSI-based ranging scheme | 101 |
| protocol | RSSI-based ranging protocol | “ble_rssi” |
| rssi | The Received Signal Strength Indication from this client on this server | -91 |
| rssi_avg_5 | The moving average of the last 5 rssi values from this client on this server | -75 |
| rssi_avg_20 | The moving average of the last 20 rssi values from this client on this server | -76.45 |
| rssi_avg_100 | The moving average of the last 100 rssi values from this client on this server | -75.59 |
| range_no_avg | The evaluated distance based on raw (no average) rssi value | 63.999583496735056 |
| range_avg_5 | The evaluated distance based on the rssi_avg_5 value | 10.079307657121928 |
| range_avg_20 | The evaluated distance based on the rssi_avg_20 value | 11.917347366143893 |
| range_avg_100 | The evaluated distance based on the rssi_avg_100 value | 10.790261673674209 |
| range | Final distance estimation (=range_avg_100) | 10.790261673674209 |
| localisation.initiator | Client position x, y, z | -2.12, 2.793, 2.65 |
| localisation.target | Server position x, y, z | -3.132, 4.339, 2.65 |
| distance | Client-server true distance | 5.475 |
| rangingError | Ranging error (=range-distance) | 5.315 |