Codes defined on graphs.
Low-density parity-check codes, turbo codes, and indeed most practically decodable capacity-approaching error correcting codes can all be understood as codes defined on graphs. Graphs not only describe the codes, but, more important, they structure the operation of the sum-product decoding algorithm...
| Udgivet i: | IEEE Communications magazine 41, 8 (2003). |
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| Format: | Article |
| Sprog: | English |
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