Bidirectional breadth-first algorithms for the decoding of convolutional codes

@article{Belzile1993BidirectionalBA,
  title={Bidirectional breadth-first algorithms for the decoding of convolutional codes},
  author={Jean Belzile and David Haccoun},
  journal={IEEE Trans. Communications},
  year={1993},
  volume={41},
  pages={370-380}
}
New bidirectional multiple-path tree searching algorithms for the decoding of convolutional codes are presented. These suboptimal decoding algorithms use a multiple-path breadth-first bidirectional tree exploration procedure and longmemory (v > 20) convolutional codes. Compared to the usual M-algorithm, we show that the bidirectional exploration considerably reduces the bit error propagation due to correct path loss. Computer simulations using rate 1 /2 codes over binary symmetric channels have… CONTINUE READING
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