SISO FB-MAP detection for turbo-coded differential PSK systems

Ching Chi Lo, Szu-Lin Su

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

For turbo-coded differential phase-shift-keying (DPSK) systems under correlated flat-fading channels, a serial iterative structure of soft-inputsoft-output (SISO) forward/backward MAP (FB-MAP) detection and SISO decoder is proposed to reduce the computational complexity of MAP detection without performance degradation. The simulation results show that the FB-MAP detection scheme offers the same or better bit error rate (BER) performance with lower computational complexity when compared with the a posteriori probability (APP) demodulator, the SISO MAP detection, and the SISO multiple-symbol differential sphere decoder (MSDSD) scheme. Although the computational complexity is higher than the iterative filtered multiple differential detection (IF-MDD) scheme, the proposed detection scheme can have better BER performance.

Original languageEnglish
Article number5173517
Pages (from-to)5288-5293
Number of pages6
JournalIEEE Transactions on Vehicular Technology
Volume58
Issue number9
DOIs
Publication statusPublished - 2009 Nov 1

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Phase shift keying
Differential System
Computational complexity
Bit error rate
Output
Computational Complexity
Demodulators
Fading channels
Error Rate
Differential Phase-shift Keying (DPSK)
Degradation
Fading Channels
Low Complexity
Simulation

All Science Journal Classification (ASJC) codes

  • Automotive Engineering
  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

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abstract = "For turbo-coded differential phase-shift-keying (DPSK) systems under correlated flat-fading channels, a serial iterative structure of soft-inputsoft-output (SISO) forward/backward MAP (FB-MAP) detection and SISO decoder is proposed to reduce the computational complexity of MAP detection without performance degradation. The simulation results show that the FB-MAP detection scheme offers the same or better bit error rate (BER) performance with lower computational complexity when compared with the a posteriori probability (APP) demodulator, the SISO MAP detection, and the SISO multiple-symbol differential sphere decoder (MSDSD) scheme. Although the computational complexity is higher than the iterative filtered multiple differential detection (IF-MDD) scheme, the proposed detection scheme can have better BER performance.",
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SISO FB-MAP detection for turbo-coded differential PSK systems. / Lo, Ching Chi; Su, Szu-Lin.

In: IEEE Transactions on Vehicular Technology, Vol. 58, No. 9, 5173517, 01.11.2009, p. 5288-5293.

Research output: Contribution to journalArticle

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