Current trends in the development of high-data-rate wireless systems focus on the integration of orthogonal frequencydivision multiplexing (OFDM) and multiple-input?multiple-output (MIMO).The combination of OFDM and the Multiple-InputMultiple-Output (MIMO) technique represents a promising candidate for future broadband wireless systems. This paper addresses the Inter Carrier Interference (ICI) issue in multiuser MIMO-OFDM systems operating in time-varying frequency selective channel environments.In our proposed method precoding based on signal-to-leakage-and-noise ratio (SLNR) is considered.In this paper model using precoding in MIMO-OFDM is introduced.Based on the model algorithm for precoding matrix is developed.Simulation results confirms reduction in ICI without increasing complexity of a system.
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