author = {A. Dekorsy and V. K\"{u}hn and K.-D. Kammeyer},
  year = {1999},
  month = {Sep},
  title = {Iterative Decoding with M-ary Orthogonal Walsh Modulation in OFDM-CDMA Systems},
  URL = {http://www.et2.tu-harburg.de/Veranstaltungen/OFDM/1999/},
  address={Hamburg, Germany},
  abstract={Iterative decoding of a serial concatenated coding scheme consisting of an outer convolutional code and M-ary orthogonal Walsh modulation as inner Walsh-Hadamard  block code in an OFDM-CDMA system is applied. New aspects arise because OFDM enables the iterative decoding structure to exploit time as well as frequency diversity of a mobile channel. Moreover, the paper points out the low complex symbol-by-symbol maximum a posteriori (SS-MAP) decoding of Walsh-Hadamard block codes. Besides the derivation of the log-likelihood-ratio used for SS-MAP Walsh-Hadamard decoding, simulation results are shown for a differently interleaved indoor channel. They confirm the iterative decoding property to benefit from selectivity in time as well as frequency direction.},
  booktitle={4th International OFDM-Workshop (InOWo 99)}