High SNR BER Comparison of Coherent and Differentially Coherent Modulation Schemes in Lognormal Fading Channels

Author

Xuegui Song ; Julian Cheng ; Alouini, Mohamed-Slim

Author_Institution

Sch. of Eng., Univ. of British Columbia, Kelowna, BC, Canada

Volume

18

Issue

9

fYear

2014

fDate

Sept. 2014

Firstpage

1507

Lastpage

1510

Abstract

Using an auxiliary random variable technique, we prove that binary differential phase-shift keying and binary phase-shift keying have the same asymptotic bit-error rate performance in lognormal fading channels. We also show that differential quaternary phase-shift keying is exactly 2.32 dB worse than quaternary phase-shift keying over the lognormal fading channels in high signal-to-noise ratio regimes.

Keywords

differential phase shift keying; error statistics; fading channels; quadrature phase shift keying; BER; SNR; asymptotic bit-error rate performance; auxiliary random variable technique; binary differential phase-shift keying; differential coherent modulation schemes; lognormal fading channels; quaternary phase-shift keying; signal-to-noise ratio regimes; Binary phase shift keying; Bit error rate; Differential phase shift keying; Diversity reception; Fading; Signal to noise ratio; Digital modulations; lognormal fading channels;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2014.2344652

Filename

6870482