Chapter 1: What Is 5G?
Abstract
This chapter provides an overview of different cellular generations, the path to 5G, and an outline of the rest of the book.
Keywords
1G; 2G; 3G; 4G; 5G; LTE; NR
Over the last 40 years, the world has witnessed four generations of mobile communication, see Fig. 1.1.
The first generation of mobile communication, emerging around 1980, was based on analog transmission with the main technologies being AMPS (Advanced Mobile Phone System) developed within North America, NMT (Nordic Mobile Telephony) jointly developed by, at that time, the government-controlled ...
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