Elman neural network Internet of things (IoT) IoT LCC converter SDN WSN air quality ambient assisted living anomaly detection assistive living bi-reflector solar PV system (BRPVS) building integrated photovoltaics (BIPV) capacitive sensor carbon nanotubes chemical sensors city behavior cloud computing cockroaches context awareness data mining algorithms decision support system differentiated services domestic environment reconfiguration dynamic range half bridge hotel room comfort impedance measurement indoor comfort insect surveillance load balancing