Figure 4

The BER versus the parameter α for γ = 0 . 1, 1, 2, 3, and 4 with E b / N 0 = 20 dB at Doppler frequency of 5 Hz in decode-and-forward (DF).
The BER versus the parameter α for γ = 0 . 1, 1, 2, 3, and 4 with E b / N 0 = 20 dB at Doppler frequency of 5 Hz in decode-and-forward (DF).