%0 Journal Article
%T EM-based Semi-blind Channel Estimation in AF Two-Way Relay Networks
%A Saeed Abdallah
%A Ioannis N. Psaromiligkos
%J Statistics
%D 2013
%I arXiv
%X We propose an expectation maximization (EM)-based algorithm for semi-blind channel estimation of reciprocal channels in amplify-and-forward (AF) two-way relay networks (TWRNs). By incorporating both data samples and pilots into the estimation, the proposed algorithm provides substantially higher accuracy than the conventional training-based approach. Furthermore, the proposed algorithm has a linear computational complexity per iteration and converges after a small number of iterations.
%U http://arxiv.org/abs/1304.6617v1