Space Modulation Techniques

Chapter 2MIMO System and Channel Models

2.1 MIMO System Model

In wireless communications, a transmitter is communicating with a receiver through free‐space medium. The transmitter is generally called the input as it transmits data into the communication link. The receiver is called the output as it receives transmitted data from the input. Depending on the number of antennas at both transmitter and receiver, several link configurations can be found. The simplest configuration is single‐input single‐output (SISO), where both transmitter and receiver each equipped with single antenna. If the transmitter has more than one antenna and communicates with single antenna receiver, a multiple‐input single‐output (MISO) configuration is conceived. If the receiver has more than one antenna and receives signal from a single antenna transmitter, a single‐input multiple‐output (SIMO) configuration is formed. Finally, if both transmitter and receiver have multiple antennas, a multiple‐input multiple‐output (MIMO) configuration is established.

In Figure 2.1, MIMO system model with transmit antennas and receive antennas is depicted.

Figure 2.1 General MIMO system model with transmit antennas and receive ...