Packet switching (Data transmission) 10 Mobile communication systems 4 Local area networks (Computer networks) 3 Wireless communication systems 3 Computer network protocols 2 Cellular telephone services industry 1 Code division multiple access 1 Computer networks 1 Data transmission systems 1 Design and construction 1 Dissertations 1 Dissertations, Academic 1 Ethernet (Local area network system) 1 Integrated circuits 1 Multimedia systems 1 Packet transmission 1 Quality control 1 Radio 1 Routers (Computer networks) 1 Switching systems 1 Telecommunication 1 Telephone, Wireless 1