IEEE WF-IoT Session: Peer-to-Peer Signal Strength Characteristic Between IoT Devices for Distance Estimation
JoonYoung Jung, ETRI, Korea; Dong-oh Kang, ETRI, Korea; Chang Seok Bae, ETRI, Korea
The Received Signal Strength Indication (RSSI) value of Bluetooth can be used to estimate distance between Internet of Things (IoT) devices. The characteristic of Bluetooth RSSI value is different as environments. IoT devices, within Wireless Body Area Network (WBAN) area, can recognize each other in office environment automatically. Peer to peer distance estimation using the RSSI of Bluetooth is difficult because of large deviation of RSSI value. This paper provides the experimental results of RSSI measurement between IoT devices in office environment. And it applies the Low Pass Filter (LPF) to reduce the deviation of RSSI value. So, we can estimate distance using Bluetooth RSSI LPF data whether the IoT device is within WBAN area or not.