Optimized MIMO symbol mapping to improve the turbo cliff region of iterative precoded MIMO detection. Nhan, N., Rostaing, P., Amis, K., Collin, L., & Radoi, E. In 2015 23rd European Signal Processing Conference (EUSIPCO), pages 909-913, Aug, 2015.
Optimized MIMO symbol mapping to improve the turbo cliff region of iterative precoded MIMO detection [pdf]Paper  doi  abstract   bibtex   
In this paper we investigate the concatenation of the multiple input multiple output (MIMO) max-dmin linear precoder with an outer forward error correction (FEC) code assuming turbo detection at the receiver. A maximum squared Euclidean weight (MSEW) binary-to-MIMO symbol mapper is introduced in the precoding scheme. Extrinsic information transfer (EXIT) chart is used to analyze the turbo-cliff and error-floor of the proposed MIMO symbol mapper. Analysis and simulation results show significant improvement of the proposed MSEW symbol mapper in terms of error-rate performance.

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