Citation
Abstract
In this paper, a new error-trellis syndrome decoding technique for convolutional codes is developed. This algorithm is specialized then to the entire class of systematic convolutional codes. Finally, this algorithm is applied to the high-rate Wyner-Ash convolutional codes. A special example of the one-error-correcting Wyner-Ash code, a rate 3/4 code, is treated in this paper. The error-trellis syndrome decoding method applied to this example shows in detail how much more efficient syndrome decoding is than, say, Viterbi decoding, if applied to the same problem. For standard Viterbi decoding, 64 states would be required, whereas in the example only 7 states are needed. Also, within the 7 states required for decoding, many fewer transitions are needed between the states.
Details
- Volume
- 42-78
- Published
- August 15, 1984
- Pages
- 122–134
- File Size
- 789.2 KB