Abstract
In this paper, we present the contribution of the insertion of a Turbo-type channel decoder in a MIMO chain. This MIMO chain is based on Orthogonal Space-Time Block Code (OSTBC). Alamouti proposed two structures, based on the OSTBC code and having two transmitting antennas: the first structure has a single receiving antenna, that is OSTBC 2 × 1 and the second one has two receiving antennas that is OSTBC 2 × 2. The turbo-decoder is based on the Difference Set Codes-One Step Majority Logic Decodable (DSC-OSMLD); it is the DSC (21, 11) code. After the introduction of this turbo decoder in the two Alamouti’s structures, performance are noted and compared in terms of the Bit Error Rate (BER) versus the Signal-to-Noise Ratio (SNR). The obtained results show that the addition of a one receiving antenna to the 2 × 1 OSTBC structure provides a decoding gain equal to 1 dB, while the insertion of the proposed turbo decoder brings a gain of 5.5 dB at the first iteration only.
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Boudaoud, A., El Haroussi, M., Abdelmounim, E. (2020). Turbo Decoder Based on DSC Codes for Multiple-Antenna Systems. In: Belkasmi, M., Ben-Othman, J., Li, C., Essaaidi, M. (eds) Advanced Communication Systems and Information Security. ACOSIS 2019. Communications in Computer and Information Science, vol 1264. Springer, Cham. https://doi.org/10.1007/978-3-030-61143-9_10
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DOI: https://doi.org/10.1007/978-3-030-61143-9_10
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