Reduced state Viterbi differential phase detection of MDPSK signals

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Abstract

An improved differential phase detection scheme that uses a reduced state Viterbi algorithm (RSVDPD) is proposed for the reception of M-ary differential phase shift keying (MDPSK) signals. The transmitted sequence is estimated from the received signal phases only. The number of trellis states equals that of the signal constellation points M. The branch metric is computed by tracing back the surviving path connected to each state. The bit error rate (BER) performance with RSVDPD is evaluated using computer simulation for 4 DPSK transmission in additive white Gaussian noise (AWGN) channels.

Original languageEnglish
Pages (from-to)527-529
Number of pages3
JournalElectronics Letters
Volume32
Issue number6
DOIs
Publication statusPublished - 1996 Mar 14
Externally publishedYes

Keywords

  • Phase shift keying
  • Viterbi detection

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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