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In this paper, we consider carrier-frequency offset (CFO) estimation issue in a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system using low-density parity-check (LDPC) codes at transmitter and iterative detection based on the maximum a posteriori expectation-maximization (MAP-EM) demodulator and a soft LDPC decoder at receiver. Based on the EM algorithm,...
Multiple-input multiple-output (MIMO) systems combined with orthogonal frequency division multiplexing (OFDM), can improve communication quality and capacity. In this paper, we consider channel estimation issue in a MIMO-OFDM system using low-density parity-check (LDPC) codes at transmitter and iterative detection based on a maximum a posteriori (MAP) demodulator and a soft LDPC decoder at receiver...
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