Detecting Continuous Jamming Attack using Ultra-low Power RSSI Circuit

This paper presents an ultra-low power received signal strength indicator (RSSI) circuit to detect constant jamming attacks in the internet-of-things (IoT) network. The proposed RSSI circuit uses a passive rectifier to convert incoming radio frequency (RF) signal to a DC level. A set of cascaded ultra-low power differential amplifier stages then generate the RSSI level. The circuit is implemented in a commercial 65-nm CMOS process and consumes 25nW. It has a detection sensitivity of −70dBm and a dynamic range of 48dB with a ±1dB accuracy. Simulation results of the RSSI circuit shows its robustness to noise, process, and, temperature variations.