The whole idea of writing this note is to explain to a layman how wireless technologies have evolved over the years and what bottlenecks in this evolutionary process that 6G will try to solve. I plan to do this in two parts. The current note will explain the legacy technologies and the challenges associated with them, and the 2nd part will talk about how 5G is solving some of these challenges and how 6G plans to solve them using new upcoming capabilities in software and silicon technologies. So let’s begin with the 1st part.
1st Generation (1G)
The following picture explains.
