Postdetection diversity using differential phase detection for M-ary DPSK

Author

Adachi, Fumiyuki

Author_Institution

R&D Dept., NTT Mobile Commun. Network Inc., Kanagawa

Volume

30

Issue

21

fYear

1994

fDate

10/13/1994 12:00:00 AM

Firstpage

1745

Lastpage

1746

Abstract

Postdetection diversity that uses L differential phase detector outputs for data decision is described for M-ary differential phase shift keying (M-ary DPSK. Data decision is based on minimising the weighted sum of the errors of L DPD detector outputs. The squared geometric mean of the two consecutively received signal envelope samples is used as the branch weight. The simulation results on average bit error rate (BER) performances due to additive white Gaussian noise (AWGN), multipath Doppler spread, and delay spread of π/4-shift 4DPSK are reported

Keywords

digital radio systems; diversity reception; error statistics; mobile radio systems; phase shift keying; radio reception; signal detection; π/4-shift 4DPSK; AWGN; M-ary DPSK; additive white Gaussian noise; average BER performances; bit error rate; branch weight; data decision; delay spread; differential phase detection; differential phase detector outputs; differential phase shift keying; multipath Doppler spread; postdetection diversity; received signal envelope samples; squared geometric mean; weighted sum of errors;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19941206

Filename

328545