Communication channels (information theory) 16 TK Electrical engineering. Electronics Nuclear engineering 10 Communications channels 6 Optimization 6 Optimisations 5 Channel state information 4 Communication 4 MIMO systems 4 Network security 4 Quantum communication 4 Quantum entanglement 4 Ray tracing 4 Signal receivers 4 Antenna arrays 3 Channel capacity 3 Channel estimation 3 Communications networks 3 Computer security 3 Least squares approximations 3 Orthogonal frequency division multiplexing 3 QA75 Electronic computers. Computer science 3 Smart city 3 Social media 3 Technology: general issues 3 Wireless networks 3 human 3 smart city 3 social media 3 5G mobile communication systems 2 Antennas 2