Why is Subcarrier Spacing Bigger in 5G Mobile Communications?

Explains why there are bigger OFDM subcarrier spacings in the 5G standard, compared to the 4G standard. Explains the effect of using mm-wave frequency bands and the potential for 5G to be delivered over Low Earth Orbit (LEO) satellites. Related videos: (see: http://iaincollings.com) • Why is the OFDM Symbol Prefix Shorter in 5G Mobile and 802.11ac WiFi? https://youtu.be/a0aGVPkTOCI • What are Doppler Shift, Doppler Spread, and Doppler Spectrum? https://youtu.be/LLr3-kotbz4 • How are OFDM Sub Carrier Spacing and Time Samples Related? https://youtu.be/knjeXo3VZvc • OFDM and the DFT https://youtu.be/Z4LIgNgNAlI • What is a Cyclic Prefix in OFDM? https://youtu.be/AJg57AEBtNw • How does OFDM Overcome ISI? https://youtu.be/xcQ6rtIXv6M • What are Flat Fading and Frequency Selective Fading? https://youtu.be/KiKPFT4rtHg Full categorised list of videos with pdf Summary Sheets: http://iaincollings.com