Title :
Postdetection diversity using differential phase detection for M-ary DPSK
Author :
Adachi, Fumiyuki
Author_Institution :
R&D Dept., NTT Mobile Commun. Network Inc., Kanagawa
fDate :
10/13/1994 12:00:00 AM
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;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19941206
