Wireless communication systems 107 Design and construction 105 Wireless LANs 26 Sensor networks 15 Mobile communication systems 10 Radio circuits 10 Mobile computing 9 Cellular telephone systems 8 Computer programs 8 Very large scale integration 8 Computer networks 7 Integrated circuits 7 Mathematics 7 Broadband communication systems 5 Electronic instruments 5 Application software 4 Cellular telephones 4 Development 4 Equipment and supplies 4 Security measures 4 Ad hoc networks (Computer networks) 3 Computational grids (Computer systems) 3 Management 3 Optical communications 3 Radio 3 Routers (Computer networks) 3 Arduino (Microcontroller) 2 Automation 2 Biometric identification 2 Code division multiple access 2