File: Ppt Radio 77673 | 5g Course Lecture 01 Part 3
outline of the lecture short intro to wireless communication spectrum usage spectrum allocations in 4g and 5g 2 spectrum allocation in wireless communications 3 radio waves 3 ghz simple to ...
Filetype Power Point PPTX | Posted on 03 Sep 2022 | 3 years ago
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...Outline of the lecture short intro to wireless communication spectrum usage allocations in g and allocation communications radio waves ghz simple generate depending on frequency may traverse long distances penetrate walls usually omni directionally transmitted their features mainly depend at lower f they easily pass power decay with distance higher increasingly tend become directional reflect obstacles while problem absorption also becomes amplified all frequencies are prone interference is allocated by regulatory bodies so that any defined channel requires a license except ism band vlf khz lf mf mhz follow earth curvature example am hf off s ionosphere popular militaries vhf through atmosphere micro up suitable for most terrestrial however two major problems arise these bands today largely fully occupied around world it very hard allocate broadband channels bandwidth or more this spectral domain many systems move search available wideband first such wave...