Abstract: This paper provides a comprehensive analysis of nonbinary low-density parity check (LDPC) codes built out of protographs. We consider both random and constrained edge-weight labeling, and ...

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Physicists at the University of Oxford have demonstrated a fundamentally new family of quantum cat states — quantum superpositions whose individual components are not the smooth, near-classical wave ...

Abstract: Multiple reads of the same Flash memory cell with distinct word-line voltages provide enhanced precision for LDPC decoding. In this paper, the word-line voltages are optimized by maximizing ...