author = {M. Benthin and K.-D. Kammeyer},
  year = {1994},
  month = {Sep},
  title = {Extraction of Soft Bit Information with the Use of M-ary Modulation},
  pages = {1-8},
  address={Darmstadt, Germany},
  abstract={In this paper, the generation and the use of reliability information for the decoding process of convolutionally encoded data in the context of a CDMA-environment is addressed. Special emphasis lies on the noncoherent detection of M-ary orthogonal symbols with a RAKE-receiver. Although symbol by symbol decisions are carried out, it is possible to characterize the reliability of the individual bits with specific soft information. This can be exploited successfully by a Viterbi decoder. A significant improvement of the bit error performance is achieved, even on low signal to noise conditions.},
  booktitle={COST 231, TD(94)108}