Wireless communication systems Mobile communication systems 6 Computer network protocols 4 Computer networks 3 Millimeter wave communication systems 3 Routers (Computer networks) 3 Computer algorithms 2 Computer programs 2 Internet telephony 2 MIMO systems 2 Mobile computing 2 Wireless LANs 2 Wireless sensor networks 2 Ad hoc networks (Computer networks) 1 Adaptive antennas 1 Algorithms 1 Batteries 1 Code division multiple access 1 Cryptography 1 Digital techniques Mathematics 1 Dissertations 1 Electric vehicles 1 Evaluation 1 Femtocells 1 Fuzzy logic 1 General Packet Radio Service 1 High altitude platform systems 1 IEEE 802.11 (Standard) 1 Metamaterials 1 Microwave antennas 1