UBICOMP 2018 QGesture:Quantifying Gesture Distance and Direction with WiFi Signals Nan Yut Wei Wangt Alex X.Liut Lingtao Kongt +Nanjing University,Michigan State UniversityQGesture: Quantifying Gesture Distance and Direction with WiFi Signals Nan Yu† Wei Wang† Alex X. Liu†‡ †Nanjing University, ‡Michigan State University Lingtao Kong†