Postdetection phase combining diversity for reception of faded dpsk signals

F. Adachi, K. Ohno, M. Ikura

Research output: Contribution to journalArticlepeer-review


A new postdetection diversity scheme for the differential phase detection of faded DPSK signals is proposed. It combines the detector outputs in proportion to the squared value of each branch signal envelope. The average BER of π/4-shift quaternary differential phase shift keying (QDPSK) with two-branch diversity is obtained through computer simulations assuming Rayleigh fading. It is found that the proposed diversity is superior to selection diversity by ~ 1·5 dB.

Original languageEnglish
Pages (from-to)1513-1514
Number of pages2
JournalElectronics Letters
Issue number16
Publication statusPublished - 1992 Jul 30
Externally publishedYes


  • Digital communication systems
  • Phase modulation
  • Phase-shift keying

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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