From the course: Introduction to 5G
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New 5G technologies
- So let's look at one specific new technology, and that is mmWave. So mmWave is rated in the higher frequency ranges, anything theoretically above 30 gigahertz, we're anything around 26 and 28 would still qualify as a mmWave. Now one of the downsides is that Pathloss increases, so if you have this same transmissions power to compare with a mmWave and a non mmWave transmitter, the range of the mmWave transmitter is much less. Then you have of course that problem that there's a huge blockage effect as you go up in frequencies. So, you know, certain radio frequencies stop being able to penetrate walls and windows and they get rather reflectant. Then we have the general atmospheric absorption which leads to the higher pathloss. We also have more noise because we have typically in the mmWave, a much broader bandwidth. More bandwidth means I'm capturing so much more noise, and then because of the very highly reflective nature in some of the difractions, we will have quite a bit of…
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