Actions for Rate-compatible protograph LDPC code families with linear minimum distance

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Rate-compatible protograph LDPC code families with linear minimum distance

Author
Jones, Christopher R.
Published
August 7, 2012.
Physical Description
1 electronic document
Additional Creators
Dolinar, Jr., Samuel J. and Divsalar, Dariush
Online Version

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Unclassified, Unlimited, Publicly available.
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Summary
Digital communication coding methods are shown, which generate certain types of low-density parity-check (LDPC) codes built from protographs. A first method creates protographs having the linear minimum distance property and comprising at least one variable node with degree less than 3. A second method creates families of protographs of different rates, all structurally identical for all rates except for a rate-dependent designation of certain variable nodes as transmitted or non-transmitted. A third method creates families of protographs of different rates, all structurally identical for all rates except for a rate-dependent designation of the status of certain variable nodes as non-transmitted or set to zero. LDPC codes built from the protographs created by these methods can simultaneously have low error floors and low iterative decoding thresholds.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20120013559.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 16008121