Transmission System with Quadrature Amplitude Modulation

Abstract

This chapter presents an overview on the principles of digital communications. We focus on a system with one transmitter and one receiver, i.e., for a channel with a single input single output (SISO). This will also provide the necessary basics for multiple input multiple output (MIMO) systems investigated in Part III. Depending on the characteristics of the transmission medium, we have to differentiate between a wire-line and a wireless connection. Both channel types exhibit different properties and therefore will be treated separately. We start with the wire-line transmission link and in Chap. 5 the wireless system will be discussed in detail.