Newly Designed Quasi-Cyclic Low Density Parity Check Codes

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Executive Summary

Low density parity check codes have acquired considerable attention due to its near-capacity error execution and powerful channel coding technique with an adequately long codeword length. This paper presents the construction of large girth Quasi-Cyclic Low Density Parity Check (QC-LDPC) codes. The row groups are paired two times the row weight which has cut down hardware implementation cost and complexity as compared to the connection of individual columns and rows. The construction of newly obtained codes gives a class of efficiently encodable quasi-cyclic LDPC codes.

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