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Generations of Mobile Networks
- First generation (1G) 1980 - delivered analog voice.
- Second generation (2G) early 1990s - introduced digital voice (e.g. CDMA- Code Division Multiple Access).
- Third generation (3G) early 2000s - 3G brought mobile data (e.g. CDMA2000).
- Fourth generation (4G) 2010s: 4G LTE ushered in the era of mobile broadband.
- Fifth generation (5G) 2020s - 5G is based on OFDM (Orthogonal frequency-division multiplexing), a method of modulating a digital signal across several different channels to reduce interference.
