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Efficient encoding for a family of quasi-cyclic LDPC codes

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1 Author(s)
Hocevar, D.E. ; DSP Solutions R&D Center, Texas Instruments, Dallas, TX, USA

In general, encoding for LDPC codes can be difficult to realize efficiently. The paper presents techniques and architectures for LDPC encoding that are efficient and practical for a particular class of codes. These codes are the irregular partitioned permutation LDPC codes recently introduced by the author (Hocevar, D.E., Proc. IEEE Int. Conf. on Commun., p.2708-12, 2003). Since these codes are quasi-cyclic, it is known that a simpler encoding process does exist. The paper goes beyond that basic method by exploiting other structural properties to allow for a simpler and faster encoding process, in both software and hardware. Solutions for some rank deficient codes are also given.

Published in:

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE  (Volume:7 )

Date of Conference:

1-5 Dec. 2003