generations of network 1g, 2g, 3g, 4g, 5g pdf

In the past few decades, mobile wireless technologies have experience 4 or 5 generations of technology revolution and evolution, namely from 0G to 4G. Current research in mobile wireless technology concentrates on advance implementation of 4G technology and 5G technology. Currently 5G termis not officially used.

1880: It all started with the discovery of radio waves, which soon led to the telegraph and mobile phones . 1901: A brief letter between Britain and Canada was the first wireless Transatlantic message. 1922: With the discovery of FM frequencies, as well as the portable radio, a framework was established.

The four types of wireless networks — wireless LAN, wireless MAN, wireless PAN and wireless WAN — differ when it comes to size, range and connectivity requirements.