Why is SC-FDMA called "Single Carrier"?

Explains the relationship between SC-FDMA, OFDMA and FDMA in digital mobile communication systems. Note that I should have drawn the sub-carrier/sub-channel side lobes having zeros under the peaks of the neighbouring sub-carriers/sub-channels. I was a bit too representational/simplistic in my drawings. The reason I don't pay too much attention to the zero-crossings in the frequency domain, is because they are not actually "the reason" the sub-channels are orthogonal (although many people believe it is). More details on why the sub-carriers are orthogonal can be found here: "Orthogonal Basis Functions in the Fourier Transform"    • Orthogonal Basis Functions in the Fourier ...   Check out my search for signals in everyday life, by following my social media feeds: Facebook: https://www.facebook.com/profile.php?... Instagram:   / iainexplains   Related videos: (see: http://iaincollings.com) • What is SC-FDMA? And why is it used for the Uplink of 4G/5G Mobile?    • What is SC-FDMA? And why is it used for th...   • What is PAPR? and its relationship to OFDM    • What is PAPR? and its relationship to OFDM   • Why is the OFDM Symbol Prefix Shorter in 5G Mobile and 802.11ac WiFi?    • Why is the OFDM Symbol Prefix Shorter in 5...   • Why is Subcarrier Spacing Bigger in 5G Mobile Communications?    • Why is Subcarrier Spacing Bigger in 5G Mob...   • How are OFDM Sub Carrier Spacing and Time Samples Related?    • How are OFDM Sub Carrier Spacing and Time ...   • What is Multi-User MIMO Communications (MU MIMO)?    • What is Multi-User MIMO Communications (MU...   • What is MIMO OFDM?    • What is MIMO OFDM?   • OFDM and the DFT    • OFDM and the DFT   • What is a Cyclic Prefix in OFDM?    • What is a Cyclic Prefix in OFDM?   • How does OFDM Overcome ISI?    • How does OFDM Overcome ISI?   • Modelling mmWave MIMO Channels    • Modelling mmWave MIMO Channels   • What are Doppler Shift, Doppler Spread, and Doppler Spectrum?    • What are Doppler Shift, Doppler Spread, an...   • What are Flat Fading and Frequency Selective Fading?    • What are Flat Fading and Frequency Selecti...   Full categorised list of videos with pdf Summary Sheets: http://iaincollings.com