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Low ML-detection complexity, adaptive 2×2 STBC, with powerful FEC codes

Abstract : We present an adaptive space time block code (STBC) for 2×2 MIMO systems designed to be used with powerful forward error correcting (FEC) codes and having a low ML-detection complexity. STBCs are commonly designed according to the rank-determinant criteria, suitable for high signal to noise ratio (SNR) values. However, powerful FEC codes like turbo codes achieve iterative convergence at low to moderate SNR. Thus, we first propose a non-asymptotic STBC design criterion based on the bitwise mutual information (BMI) maximization at a specific target SNR. According to this criterion, an adaptive matrix D based STBC is defined for a wide range of SNRs. Resulting code outperforms the original matrix D and closes the gap to the more complex Golden code in the context of a WiMAX system.
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Submitted on : Wednesday, June 23, 2021 - 7:41:35 PM
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Ammar El Falou, Charlotte Langlais, Charbel Abdel Nour, Catherine Douillard. Low ML-detection complexity, adaptive 2×2 STBC, with powerful FEC codes. 7th International Symposium on Turbo Codes & Iterative Information Processing, Aug 2012, Gothenburg, Sweden. ⟨10.1109/ISTC.2012.6325226⟩. ⟨hal-00797564⟩



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