Method and apparatus for concatenated punctured encoding and...

Details Method and apparatus for concatenated punctured encoding and... Method and apparatus for concatenated punctured encoding and...

H - Electricity

03

M

H03M 13/29 (2006.01) H03M 13/00 (2006.01) H03M 13/21 (2006.01) H03M 13/41 (2006.01) H04L 1/00 (2006.01) H04L 5/00 (2006.01)

Patent

CA 2352935

A method and apparatus are provided coding communications signals 16 carried between transmitting and receiving stations 12 and l4. A data stream from a communications signal is encoded with an outer code 22 to form an outer-coded data stream that is passed to an inner coder 26. The inner coder 26 applies an inner code and punctures the resulting coded data stream by deleting at least one bit from each symbol to achieve a desired data rate and coding level. The system 10 offers multiple levels of puncturing to vary the coding level between heavy and light. The inner code may be a Nordstrom-Robinson code and the outer code may be a Reed- Solomon code.

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