Research Article
Performance Improvement Design of Bluetooth Low Energy-Based Wireless Indoor Positioning Systems
Table 1
Hardware specifications of the reference node and target node.
| | Specification | Reference node | Target node |
| | Manufacturer | NECTEC | MINEW tech (beacon card) |
| | Chipset | Nordic semiconductor nRF52x for BLE and MediaTek MT7688 for WLAN | Nordic semiconductor nRF52x for BLE |
| | Frequency range | 2.405 GHz to 2.480 GHz | 2.405 GHz to 2.480 GHz |
| | Operating channel | Three advertising channels (37, 38, and 39) of IEEE 802.15.1 | Three advertising channels (37, 38, and 39) of IEEE 802.15.1 |
| | Rx sensitivity for BLE | −93 dBm | −93 dBm |
| | Transmit power for BLE | +4 dBm | 0 dBm |
| | Broadcasting interval | 3000 msec (only for WLAN) | 1000 msec (only for BLE) |
| | Antenna | 2.4 GHz ceramic chip antennas | PCB antenna |
| | Power supply | Micro-USB power supply 5.1 V/2.5 A | Lithium polymer battery 3.7 V |
| | Dimensions | 120 mm × 170 mm × 30 mm | 90 mm × 60 mm × 4 mm |
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