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- W2091715837 abstract "In this paper, the problem of designing a linear precoder for Multiple-Input Multiple-Output (MIMO) systems employing Low-Density Parity-Check (LDPC) codes is addressed under the constraint of minimizing the dependence between the system's receiving branches, thus reducing the relevant transmitter and receiver complexities. Our approach constitutes an interesting generalization of Bit-Interleaved Coded Modulation with Multiple Beamforming (BICMB) which has shown many benefits in MIMO systems. We start with a Pareto optimal surface modeling of the system and show the difficulty involved in the corresponding optimization problem. We then propose an alternative, practical technique, called per-Group Precoding (PGP), which groups together multiple input symbol streams and corresponding receiving branches, and thus results in independent transmitting/receiving streams between groups. We show with simulated results that PGP offers almost optimal performance, albeit with significant reduction both in the precoder optimization, and LDPC EXIT chart based decoding complexities." @default.
- W2091715837 created "2016-06-24" @default.
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- W2091715837 date "2013-11-01" @default.
- W2091715837 modified "2023-10-18" @default.
- W2091715837 title "Linear precoding for MIMO with LDPC coding and reduced receiver complexity" @default.
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- W2091715837 doi "https://doi.org/10.1109/acssc.2013.6810670" @default.
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