Bandwidth-efficient noncoherent Trellis-coded MPSK

Ruey Yi Wei, Chang Chih Huang

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In this letter, we propose a novel bandwidth-efficient noncoherent trellis-coded MPSK scheme, in which a particularlydesigned differential encoder is added in front of the trellis encoder. With this differential encoder, trellis-coded MPSK proposed by Ungerboeck is no longer noncoherently catastrophic and thus achieves better error performance. Moreover, new trellis codes which, for the proposed scheme, have better bit error rates than Ungerboeck's codes are found by computer searches.

Original languageEnglish
Pages (from-to)2853-2856
Number of pages4
JournalIEEE Transactions on Communications
Issue number10
StatePublished - 2009


  • Noncoherent detection
  • PSK (phase-shift keying)
  • Trellis-coded modulation


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