Coder and method for coding rate-compatible low-density parity-check codes
A low-density parity and check code technology, which is applied in the direction of error detection coding, coding, and coding components that apply multiple parity bits, and can solve problems such as decoding failure and inability to guarantee the performance of LDPC codes
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[0049] In order to make the purpose, technical means and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0050] The basic idea of the present invention is: according to the target code rate, expand the mother code matrix into a basic extended matrix that meets the requirements of different target code rates according to the minimum ring length maximization criterion, so as to realize rate-compatible LDPC coding, thereby avoiding The resulting decoding performance is reduced.
[0051] The present invention provides a rate-compatible LDPC encoder, including: a basic extension matrix determination unit, a correction processing unit, an extension unit and a coding unit.
[0052] In the LDPC encoder described above, the LDPC encoding method of the present invention can be implemented. image 3 It is a flow chart of the encoding method of LDPC in the present invention. l...
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