Apparatus and method for receiving signal in a communication system using a low density parity check code
First Claim
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1. A method for receiving a signal in a signal reception apparatus of a communication system using a Low Density Parity Check (LDPC) code, the method comprising:
- decoding a received signal according to a hybrid decoding scheme,wherein decoding the received signal according to the hybrid decoding scheme comprises;
updating a plurality of bit nodes included in the received signal; and
updating a plurality of check nodes,wherein the hybrid decoding scheme is generated by combining two of a Belief Propagation algorithm, a Min-Sum algorithm, and a Lambda-Min algorithm, andwherein when the hybrid decoding scheme is generated by combining the Belief Propagation algorithm with the Min-Sum algorithm, updating the plurality of check nodes comprises;
using the Belief Propagation algorithm in updating a check node message for a least reliable bit node, andusing the Min-Sum algorithm in updating a check node message for a remaining bit node except the least reliable bit node.
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Abstract
An apparatus and a method for receiving a signal in a communication system using a Low Density Parity Check (LDPC) code. The apparatus and the method includes decoding a received signal according to a hybrid decoding scheme, wherein the hybrid decoding scheme is generated by combining two of a first decoding scheme, a second decoding scheme, and a third decoding scheme.
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Citations
18 Claims
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1. A method for receiving a signal in a signal reception apparatus of a communication system using a Low Density Parity Check (LDPC) code, the method comprising:
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decoding a received signal according to a hybrid decoding scheme, wherein decoding the received signal according to the hybrid decoding scheme comprises; updating a plurality of bit nodes included in the received signal; and updating a plurality of check nodes, wherein the hybrid decoding scheme is generated by combining two of a Belief Propagation algorithm, a Min-Sum algorithm, and a Lambda-Min algorithm, and wherein when the hybrid decoding scheme is generated by combining the Belief Propagation algorithm with the Min-Sum algorithm, updating the plurality of check nodes comprises; using the Belief Propagation algorithm in updating a check node message for a least reliable bit node, and using the Min-Sum algorithm in updating a check node message for a remaining bit node except the least reliable bit node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An apparatus for receiving a signal in a communication system using a Low Density Parity Check (LDPC) code, the apparatus comprising:
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a decoder for decoding a received signal according to a hybrid decoding scheme by updating a plurality of bit nodes and a plurality of check nodes, wherein the hybrid decoding scheme is generated by combining two of a Belief Propagation algorithm, a Min-Sum algorithm, and a Lambda-Min algorithm, wherein when the hybrid decoding scheme is generated by combining the Belief Propagation algorithm with the Min-Sum algorithm, the decoder uses the Belief Propagation algorithm in updating a check node message for a least reliable bit node, and uses the Min-Sum algorithm in updating a check node message for a remaining bit node except the least reliable bit node. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification