Wireless Standards


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

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