Trellis-coded differentially coherent (TCDC) MPSK with carrier-phase-noise

Author

Leib, Harry ; Pasupathy, Subbarayan

Author_Institution

Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada

Volume

39

Issue

6

fYear

1991

fDate

6/1/1991 12:00:00 AM

Firstpage

877

Lastpage

886

Abstract

The authors consider trellis-coded M-ary phase shift keying (MPSK) when used with differentially coherent demodulation over a carrier-phase-noise dominated channel. A tight upper-bound to the probability of error is introduced. This bound shows the presence of an irreducible probability of error. When compared to coherently demodulated trellis-coded MPSK, the irreducible probability of error of the differentially coherent scheme is much lower. This improved robustness to carrier-phase-noise is obtained at the expense of signal-to-noise-ratio (SNR), coding gain. Numerical results for two Ungerboeck codes with differentially coherent MPSK demodulation show poor SNR coding gain. A modification of Ungerboeck codes which makes them more suitable for use with differentially coherent demodulation is shown to increase the SNR gain while maintaining good robustness to carrier-phase-noise

Keywords

carrier communication; demodulation; encoding; error correction codes; phase shift keying; telecommunication channels; MPSK; SNR; Ungerboeck codes; carrier phase noise; coding gain; differentially coherent demodulation; error probability; signal-to-noise-ratio; telecommunication channels; trellis-coded M-ary phase shift keying; upper-bound; Bandwidth; Convolutional codes; Demodulation; Fading; Jitter; Mobile communication; Phase shift keying; Robustness; Signal to noise ratio; Time division multiple access;

fLanguage

English

Journal_Title

Communications, IEEE Transactions on

Publisher

ieee

ISSN

0090-6778

Type

jour

DOI

10.1109/26.87177

Filename

87177