2 papers
cs.IT2026
The Number of Cycles of Bi-regular Tanner Graphs in Terms of the Eigenvalues of the Adjacency Matrix
Roxana Smarandache, David G. M. Mitchell
In this paper, we explore new connections between the cycles in the graph of low-density parity-check (LDPC) codes and the eigenvalues of the corresponding adjacency matrix. The re…
cs.IT2025
Generalized Quasi-Cyclic LDPC Codes: Design and Efficient Encoding
Roxana Smarandache, David G. M. Mitchell, Anthony Gómez-Fonseca
Generalized low-density parity-check (GLDPC) codes, where single parity-check constraints on the code bits are replaced with generalized constraints (an arbitrary linear code), are…