noise immunity

The Impact of Bluetooth Low Energy Interference and MU-MIMO Technology on Wi-Fi 5 Network Performance

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.

EVALUATION OF FREQUENCY-PHASE DISTORTIONS IN OPTICAL TELECOMMUNICATIONS USING OFDM

The article proposes a method for monitoring the peak-to-average power ratio (PAPR), and also discusses the results of assessing the sensitivity of optical-OFDM systems to phase-frequency distortions. The results of a study of the noise immunity of an optical-OFDM system for frequency shift relative to the spacing of optical subcarriers are presented.

Water noise immunity improvement in the capacitive sensor panels.

This paper proposes sensing electrode condensed water resistance improvement for the capacitive sensors. It was suggested to use active shield method for the self-capacitance sensors, special sensor construction with using the guard sensor and additional sensor signal processing algorithms.