LDPC ENCODING AND DECODING OF PACKETS OF VARIABLE SIZES

Techniques to support low density parity check (LDPC) encoding and decoding are described. In an aspect, LDPC encoding and decoding of packets of varying sizes may be supported with a set of base parity check matrices of different dimensions and a set of lifting values of different powers of two. A...

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Bibliographic Details
Main Authors KHANDEKAR AAMOD, RICHARDSON THOMAS
Format Patent
LanguageEnglish
Korean
Published 07.03.2013
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRICITY
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Summary:Techniques to support low density parity check (LDPC) encoding and decoding are described. In an aspect, LDPC encoding and decoding of packets of varying sizes may be supported with a set of base parity check matrices of different dimensions and a set of lifting values of different powers of two. A base parity check matrix G of dimension m B ( En B ) may be used to encode a packet of k B =n B -m B information bits to obtain a codeword of n B code bits. This base parity check matrix may be "lifted" by a lifting value of L to obtain a lifted parity check matrix H of dimension Lm B ( ELn B ) . The lifted parity check matrix may be used to encode a packet of up to Lk B information bits to obtain a codeword of Ln B code bits. A wide range of packet sizes may be supported with the set of base parity check matrices and the set of lifting values.
Bibliography:Application Number: KR20137002214