Extended Non-Binary Low-Density Parity-Check Codes over Erasure Channels

Details Extended Non-Binary Low-Density Parity-Check Codes over Erasure Channels Extended Non-Binary Low-Density Parity-Check Codes over Erasure Channels

2011-03-14

arxiv.org/abs/1103.2691v1

Computer Science

Information Theory

ISIT 2011, submitted

Scientific paper

Based on the extended binary image of non-binary LDPC codes, we propose a method for generating extra redundant bits, such as to decreases the coding rate of a mother code. The proposed method allows for using the same decoder, regardless of how many extra redundant bits have been produced, which considerably increases the flexibility of the system without significantly increasing its complexity. Extended codes are also optimized for the binary erasure channel, by using density evolution methods. Nevertheless, the results presented in this paper can easily be extrapolated to more general channel models.

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