Deterministic and stochastic representation of mobile radio channels; Time-variant linear systems; Probability density functions of fading channels; Noise and interference; Diversity; Multichannel transmission and linear combining techniques; UMTS and HSDPA; LTE systems; Device-2-Device (D2D) communication using LTE; Cellular internet of things (IoT); LTE in V2X communication; 5G; An introduction to modulations and waveforms for 5G networks; Massive-MIMO and basic channel measurement techniques; Non orthogonal multiple access (NOMA); Cognitive radio for 5G networks; 6G communication systems.