Research Letter

Training Sequence Length Optimization for a Turbo-Detector Using Decision-Directed Channel Estimation

Figure 4

S N R e , e q , D D versus 𝑇 𝑝 for Channel 3 and Channel 4, S N R = 9  dB, 𝑇 = 5 1 2 , and 𝛿 𝑇 = 1 0 0 .
860368.fig.004