VLSI implementation considerations for turbo decoding using a low latency log-MAP

@article{Raghupathy1999VLSIIC,
  title={VLSI implementation considerations for turbo decoding using a low latency log-MAP},
  author={Arun Raghupathy and K. J. Ray Liu},
  journal={1999 Digest of Technical Papers. International Conference on Consumer Electronics (Cat. No.99CH36277)},
  year={1999},
  pages={182-183}
}
The soft-output Viterbi (see IEEE J. Sel. Areas in Comm., vol.16, p.260-4, 1998) algorithm (SOVA) and the log-maximum a posterior probability (log-MAP) algorithm are commonly used in turbo decoding. We propose to modify the sliding window MAP-algorithm of Viterbi to reduce the computational delay even further. We compare the simulation performance of this low latency log-MAP algorithm with the sliding window log-MAP. We also estimate the VLSI implementation complexities of the SOVA, the log-MAP… CONTINUE READING

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Improved decoding with the SOVA in a parallel concatenated ( turbo - code ) scheme

  • E. Villebrun

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