Precoding Based on Signal-to-Leakage and Noise Ratio to Reduce ICI in MIMO-OFDM Systems

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Provided by: International Journal of Computer Applications
Topic: Networking
Format: PDF
Current trends in the development of high-data-rate wireless systems focus on the integration of Orthogonal Frequency Division Multiplexing (OFDM) and Multiple Input Multiple Output (MIMO).The combination of OFDM and the Multiple Input Multiple 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. The authors' proposed method precoding based on Signal-to-Leakage-and-Noise Ratio (SLNR) is considered. In this paper, model using precoding in MIMOOFDM is introduced. Based on the model algorithm for precoding matrix is developed. Simulation results confirm reduction in ICI without increasing complexity of a system.
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