Fig. 5From: A new blind algorithm for channel estimation in OFDM-based amplify-and-forward two-way relay networksComparison of the BER for K=500. We compare the BER performances of our method with the method proposed by Liao et al. in [34]. The parameter θ in Liao’s algorithm is set to 0.2, 0.4, 0.6, and 0.8. The number of received blocks is K=500Back to article page