"Position-independent"@en . "Multi-target respiration sensing"@en . "Gesture recognition"@en . "Kai" . "Finger gesture"@en . "Gesture interaction"@en . "Wireless sensing"@en . "Sleep monitoring"@en . "Time frequency feature"@en . "Channel State Information CSI"@en . "Channel State Information"@en . "Wi-Fi"@en . "Text input"@en . "Long range sensing"@en . "Contactless wireless sensing"@en . "WiFi sensing"@en . "Kai Niu" . "LoRa signal"@en . "Contactless sensing"@en . . "LoRa beamforming"@en . <0000-0002-0872-3276> . . "LTE signal"@en . "Niu" . "Device-free sensing"@en . . "4G signal"@en . "CSI ratio"@en . "Morse code"@en . "Modeling"@en .