Key points are not available for this paper at this time.
By allowing centimeter-scale human activity sensing with Wi-Fi signals, the Fresnel zone model could revolutionize wireless sensing and Internet of Things applications. The web extra at www. youtube. com/watch? v=RᵥR6O8706g demonstrates how the Fresnel zone model can be leveraged for device-free sensing of human activities such as respiration and walking.
Zhang et al. (Sun,) studied this question.