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METHOD OF CORRECTING MESSAGE ERRORS USING CYCLIC REDUNDANCY CHECKS
METHOD OF CORRECTING MESSAGE ERRORS USING CYCLIC REDUNDANCY CHECKS
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机译:利用循环冗余校验纠正消息错误的方法
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摘要
A method of correcting errors in a message transmitted over a digital communication channel, where the message was encoded using a CRC for purposes of error detection. A parity-check matrix representation of the CRC is computed for any fixed-length message, and that parity-check matrix is combined with the parity-check matrix for any error correcting code that used in conjunction with the CRC. The combined parity-check matrix is extended using sparsification algorithms to allow it to work well under a message passing decoder (MPD). Received messages are decoded using the message passing decoder, making it possible to correct more errors than if the CRC were decoded in a conventional manner.
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