FLEXIBLE CODE RATE FAST LDPC ENCODER BASED ON JACKET PATTERN

摘要

A jacket pattern-based fast LDPC(Low Density Parity Check) encoder having various code rates is provided to support the various code rates by generating and using additional parity bits. A jacket pattern-based fast LDPC encoder includes a codeword output unit(200), a data selection unit(220), an adder unit(230), and a delay unit(240). The jacket pattern-based fast LDPC encoder is formed to generate additional parity bits with respect to a codeword generated by a jacket pattern-based LDPC encoder and to support various code rates by using the generated additional parity bits. The jacket pattern-based fast LDPC encoder supports the various code rates by applying additionally an RA coding process to the codeword generated by the jacket pattern-based LDPC encoder.