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LDPC codes are a family of error correcting codes used in most modern digital communication standards even in future 3GPP 5G standard. Thanks to their high processing power and their parallelization capabilities, prevailing multi-core and many-core devices facilitate real-time implementations of digital communication systems, which were previously implemented on dedicated hardware targets. Through...
Rotated QAM constellations improve Bit-Interleaved Coded Modulation (BICM) performance over fading channels. Indeed, an increased diversity is obtained by coupling a constellation rotation with interleaving between the real and imaginary components of transmitted symbols either in time or frequency domain. Iterative processing at the receiver side can provide additional improvement in performance...
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