BLE

The mutual influence of Bluetooth Low Energy (BLE) and Wi-Fi 5 technologies in the 2.4 GHz band was investigated, along with an assessment of MU-MIMO technology effectiveness under such interaction. Experimental measurements of key network performance indicators, such as TCP throughput and connection stability, were conducted for various wireless channel configurations. It was established that BLE activity predominantly negatively affects Wi-Fi parameters. The dependency of interference levels on Wi-Fi channel selection and channel width was analyzed.

This study explores indoor positioning in enc- losed environments using Bluetooth Low Energy technology. A system based on two Thunderboard Sense 2 beacons and a Nordic nRF52840-DK device has been proposed. The positioning method relies on signal characteristics to estimate the location of an object. Related research has been reviewed, and the technical implementation of the preliminary system has been presented. The results demonstrate the potential of Bluetooth Low Energy for accurate and energy-efficient indoor positioning and provide a basis for further experimental validation.