Design and construction Equipment and supplies Wireless communication systems Access control 1 Amplifiers, Radio frequency 1 Data processing 1 Electronic noise 1 Frequency synthesizers 1 Local area networks (Computer networks) 1 Low voltage integrated circuits 1 Management 1 Metal oxide semiconductors, Complementary 1 Noise pollution 1 Security measures 1 Vehicular ad hoc networks (Computer networks) 1 Wireless LANs 1