Cellular standards
1G
- 1st generation cellular phones uses analog modulation
- introduced in North America in 1983
- Eg. AMPS
2G
- 2nd generation cellular phones switched from analog modulation to digital modulation
- allowed data services like text messaging, etc.,
- Eg. IS54 and IS95
2.5G
3G
- 1st generation cellular phones switched from analog modulation to digital modulation
- allowed data services like text messaging, etc.,
- Eg. IS54 and IS95
3.5G
4G
WLAN
Most popular wireless standard is IEEE 802.11 series
- 802.11b was first released with 11Mbps datarate
- 802.11a followed it with 54Mbps datarate support at 5Ghz
- 802.11g support datarates 54Mbps at 2.4GHz
- 802.11n
- 802.11ac
- 802.11ad