ABSTRACT
5G is the fifth and latest generation of cellular networks that has just started to roll out during 2019–2020. While the previous four generations mainly sought to improve the data rate and capacity of the cellular systems, 5G is designed to improve several other aspects of communications and connectivity beyond the data rates. 5G promises to massively surpass 4G in three main technical areas: data rates, latency, and connection density, which is expected to support new applications and services not possible before. For example, latencies below 1ms can support new applications like industrial robotics, autonomous driving, and remote medical procedures. Similarly, a million connections per square kilometers will help support many Internets of Things (IoT) applications that involve connecting billions of devices at a scale not seen before, which has the potential to revolutionize almost all vertical markets including agriculture, manufacturing, health, and defense. This chapter first explains the technical targets and potential new applications of 5G followed by the coverage of key new technologies to be used in 5G, including Non-Orthogonal Multiple Access (NOMA), Full-duplex wireless, Massive MIMO and 3D Beamforming, Mobile Edge Computing (MEC), and the use of millimeter wave bands. [193 words]
