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Mobile Standards Evolution: FDMA, TDMA, CDMA, OFDMA

Summarises the main fundamental elements in the evolution of the physical layer of mobile communications standards from 2G to 5G from a signals perspective. Note a small "typo"/error: I wrote 3G under OFDMA, but actually 3G used a version of CDMA called Wideband CDMA. Originally, the OFDMA system was part of the 3G standard, called Long Term Evolution (LTE), but ultimately that part of the standard ended up being called 4G. Also, note that the 5G standard is also based on OFDMA (although I forgot to mention that in the video). Related Videos: (see: http://iaincollings.com) • What is NOMA in 5G Mobile Communications?    • What is NOMA in 5G Mobile Communicati...   • How does 5G NOMA compare to 4G OFDMA and 3G CDMA?    • How does 5G NOMA compare to 4G OFDMA ...   • 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 f...   • Why is SC-FDMA called "Single Carrier"?    • Why is SC-FDMA called "Single Carrier"?   • What is Pulse Shaping and the Square Root Raised Cosine?    • Pulse Shaping and Square Root Raised ...   • OFDM Waveforms    • OFDM Waveforms   • 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?   For a full categorised list of videos: http://www.iaincollings.com