Chapter 1. Introduction and Motivation

By Emil Björnson, KTH Royal Institute of Technology, Sweden, emilbjo@kth.se | Özlem Tuğfe Demir, KTH Royal Institute of Technology, Sweden

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Published: 17 Jan 2024

© 2024 Emil Björnson | Özlem Tuğfe Demir

Abstract

This chapter first introduces the fundamental concepts of signal power, channel gain, and antenna directivity. Then the use of multiple antennas will be motivated by outlining three main benefits this technology can provide.