Wireless LANs Wireless communication systems 353 Sensor networks 217 Security measures 116 Design and construction 78 IEEE 802.11 (Standard) 57 Computer network protocols 54 Standards 53 Antennas (Electronics) 52 Mobile communication systems 47 Computer networks 46 Home computer networks 36 Ad hoc networks (Computer networks) 28 Telecommunications engineers 22 Certification 21 Examinations 21 IEEE 802.16 (Standard) 21 Cellular telephone systems 20 Internet telephony 20 Broadband communication systems 19 Mobile computing 19 Wireless sensor networks 19 Wireless metropolitan area networks 18 Local area networks (Computer networks) 17 Personal communication service systems 17 Technological innovations 16 Bluetooth technology 12 Equipment and supplies 12 Microstrip antennas 12 Quality control 11