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Iterative soft-QRD-M for turbo coded MIMO-OFDM systems

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3 Author(s)
Kyeong Jin Kim ; Nokia Inc., Irving, TX ; Reid, T. ; Iltis, R.A.

We propose an iterative soft detection algorithm based on the QR decomposition and M-algorithm (soft-QRD- M) for MIMO-OFDM incorporating error correction coding. The soft-QRD-M step generates approximate a posteriori probabilities (APPs) with significant computational savings over the optimal sum-product algorithm. Simulation results show comparable performance of the soft-QRD-M detector and SPA in a Turbo- coded iterative MIMO-OFDM receiver.

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Communications, IEEE Transactions on  (Volume:56 ,  Issue: 7 )