The channel state information (CSI) errors undermine the performance of interference\ this paper, we model the CSI errors at terminals and propose an IA algorithm based on total least squares (TLS) algorithm for the symmetric MIMO interference system under the assumption of CSI errors. According to the TLS algorithm, the proposed IA algorithm optimizes transmit precoding matrices and minimizes the distortion caused by the imperfect CSI. Numerical results show that the proposed IA algorithm is

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... bust in the symmetric MIMO interference network with CSI errors and has better sum-rate performance than the maximum signal-to-interference-plus-noise ratio (Max SINR) and traditional distributed iterative IA algorithms.