SYNDROME-BASED DECODING METHOD AND APPARATUS FOR BLOCK TURBO CODE
First Claim
1. A syndrome-based decoding method for a block turbo code, the block turbo code having an extended Hamming code as a component code thereof, the decoding method comprising:
- (a) generating an input information value for a next half iteration by using channel passage information and extrinsic information and a reliability factor of a previous half iteration;
(b) generating a hard decision word by way of a hard decision of the input information value;
(c) calculating an n number of 1-bit syndromes by using the hard decision word, the n number of 1-bit syndromes corresponding to a number of columns or rows of the block turbo code; and
(d) determining whether or not to proceed with the next half iteration by using the calculated n number of 1-bit syndromes.
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Abstract
A syndrome-based decoding method and apparatus for a block turbo code are disclosed. An embodiment of the present invention provides a syndrome-based decoding method for a block turbo code that includes an extended Hamming code as a component code, where the decoding method includes: (a) generating an input information value for a next half iteration by using channel passage information and the extrinsic information and reliability factor of a previous half iteration; (b) generating a hard decision word by way of a hard decision of the input information value; (c) calculating an n number of 1-bit syndromes, which corresponds to the number of columns or rows of the block turbo code, by using the hard decision word; and (d) determining whether or not to proceed with the next half iteration by using the calculated n number of 1-bit syndromes.
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8 Claims
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1. A syndrome-based decoding method for a block turbo code, the block turbo code having an extended Hamming code as a component code thereof, the decoding method comprising:
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(a) generating an input information value for a next half iteration by using channel passage information and extrinsic information and a reliability factor of a previous half iteration; (b) generating a hard decision word by way of a hard decision of the input information value; (c) calculating an n number of 1-bit syndromes by using the hard decision word, the n number of 1-bit syndromes corresponding to a number of columns or rows of the block turbo code; and (d) determining whether or not to proceed with the next half iteration by using the calculated n number of 1-bit syndromes. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A syndrome-based decoding apparatus for a block turbo code, the block turbo code having an extended Hamming code as a component code thereof, the decoding apparatus comprising:
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a processor; and a memory connected to the processor, wherein the memory stores program instructions executable by the processor to; generate an input information value for a next half iteration by using channel passage information and extrinsic information and a reliability factor of a previous half iteration; generate a hard decision word by way of a hard decision of the input information value; calculate an n number of 1-bit syndromes by using the hard decision word, the n number of 1-bit syndromes corresponding to a number of columns or rows of the block turbo code; and determine whether or not to proceed with the next half iteration by using the calculated n number of 1-bit syndromes.
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Specification