Reduced Complexity Decoding of Coded Pulse-Position Modulation Using Partial Statistics

@inproceedings{Moision2005ReducedCD,
  title={Reduced Complexity Decoding of Coded Pulse-Position Modulation Using Partial Statistics},
  author={Bruce E. Moision and Jon Hamkins},
  year={2005}
}
We show the storage requirements for soft-in soft-out (SISO) decoding of pulseposition modulation may be reduced by discarding a substantial subset of the slot likelihoods while suffering neglibible loss in performance in a serially concatenated, iteratively decoded scheme. We illustrate optimum processing of the remaining subset under a choose the maximum rule and show that a simplified trellis may be used for SISO decoding.