Autonomy estimation 1 Bluetooth 1 Bluetooth Low Energy 1 Bluetooth low energy 1 Body sensor networks 1 Body sensors ECG 1 Electric power utilization 1 Electrocardiograms 1 Low Power 1 Low power sensor 1 Lower energies 1 Power autonomy 1 Sampling rates 1 Transmit power 1 Wearable sensors 1 Wireless sensor 1 autonomy estimation 1 power consumption 1 wireless sensor 1