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In this paper, we study the transmission problem in multiple-input multiple-output (MIMO) systems with imperfect channel state information at the transmitter (CSIT). A scheme based on joint FEC coding and linear precoding at the transmitter and iterative linear minimum mean squared error (LMMSE) detection at the receiver is considered. The new scheme combines the advantages of beamforming, water-filling,...
Precoding has been widely investigated for multiple-input multiple-output (MIMO) and inter-symbol interference (ISI) channels. Most related work so far has been on uncoded systems and the impact of forward-error-correction (FEC) codes has not been well studied. In this paper, we present an optimized precoding technique that takes into account iterative joint LMMSE detection and FEC decoding. The proposed...
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