Channel coding method using concatenated code structure and apparatus therefor
AssigneeLG Electronics Inc.
InventorsKwangseok Noh, Dongkyu Kim, Sangrim Lee, Hojae Lee, Myeongjin Kim
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Abstract
Disclosed herein is a concatenated code encoding method for improving a turbo code. The concatenated code encoding method of the present disclosure includes encoding an input signal based on a repetition-accumulation (RA) code as an outer code, adding a tail bit to the encoded input signal, and encoding the encoded input signal based on the a turbo code. The concatenated code encoding method may further include interleaving the encoded input signal after application of the outer code.
Claims8
A method of transmitting data encoded by a concatenated code, the method comprising:
- generating a first codeword from an input signal using a repetition-accumulation (RA) code as an outer code;
- adding at least one tail bit to a last region of the generated first codeword;
- generating a second codeword from the generated first codeword and the added tail bit by using a turbo code as an inner code, the generated second codeword comprising a plurality of regions encoded in reverse order of the plurality of regions;
- and
- transmitting the encoded data,
- wherein the tail bit is added to a last of the plurality of regions.
A method of receiving data encoded by a concatenated code, the method comprising:
- receiving the encoded data corresponding to a plurality of regions of a second codeword, at least one tail bit is added to a last of the plurality of regions;
- decoding the last of the plurality of regions to obtain the tail bit;
- decoding a first codeword from the plurality of regions based on a turbo code by using the tail bit;
- and
- decoding an input signal from the decoded first codeword based on a repetition-accumulation (RA) code, the decoding performed in reverse order of the plurality of regions.
Dependencies are inferred from the claim text.