Discrete-time representations - Signal Processing and Optimization for Transceiver Systems - page 143

4

2

0

-2

-4

-4 -2 0 2 4

In phase

4

2

0

-2

-4

-4 -2 0 2 4

In phase

4

2

0

-2

-4

-4 -2 0 2 4

In phase

Figure 4.27 . The input QAM constellation (top), scatter diagram for the equalized
symbol stream with SSE (middle), and scatter diagram for the equalized symbol stread
with FSE (bottom). The channel is as in Eq. (4.52), the SSE is 1 /C 1 ( z ) , and the FSE
is as in (4.54).