Fig. 6From: A new blind algorithm for channel estimation in OFDM-based amplify-and-forward two-way relay networksComparison of the normalized MSE for K=50. We compare the normalized MSE 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=50Back to article page