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We study distributed algorithms for updating transmit precoding matrices for a two-user Multi-Input/Multi-Output (MIMO) interference channel. Our objective is to maximize the sum rate with linear Minimum Mean Squared Error (MMSE) receivers, treating the interference as additive Gaussian noise. An iterative approach is considered in which given a set of precoding matrices and powers, each receiver announces an interference price (marginal decrease in rate due to an increase in interference) fordoi:10.1109/icc.2009.5198927 dblp:conf/icc/ShiSBHU09 fatcat:nwwgiwhxwfekdj2x4s7mrlowwm