ABSTRACT

The idea of multiple-input multiple-output (MIMO) [1–3] started many research activities, mainly for wireless applications. MIMO technology has recently been successfully introduced by several wireless standards such as IEEE 802.11n, WiMAX and LTE [4]. Compared to their basic single-input single-output (SISO) solutions, they offer a fundamental increase in data rate without the demand of higher transmit power or bandwidth. By using more than two wires, for example, by using the protective earth (PE) wire in addition to the live (L) and neutral (N) wire in in-home power line communications (PLC) (see Chapter 1), the MIMO principles can be applied to PLC as well. The properties of the MIMO PLC channel are 200discussed in detail in Part I. This chapter deals with the MIMO signal processing theory and the application to MIMO PLC. Before pointing out the outline of this chapter, a brief overview of literature on the application of MIMO schemes to PLC is discussed.