Video links
YouTube video links
- Mobile Standards Evolution: FDMA, TDMA (3G), CDMA, OFDMA
- 802.11ac MU-MIMO
- OFDMA vs. MU-MIMO in Wi-Fi 6
2G vs 3G vs 4G vs 5G
| Generation | Technology standard | Radio access technology |
|---|---|---|
| 1G – First Generation | AMPS, NMT, TACS, J-TACS, C-Netz | FDMA |
| 2G – Second Generation | GSM, D-AMPS, IS-95 | Combination of TDMA & FDMA, and Narrowband CDMA |
| 3G – Third Generation | UMTS (WCDMA) and CDMA2000 | Wideband CDMA and Narrowband CDMA |
| 4G – Fourth Generation | LTE (Long Term Evolution) | OFDMA and SC-FDMA |
| 5G – Fifth Generation | NR (New Radio) | OFDMA |
—Technologies used by 1G, 2G, 3G, 4G and 5G—
