Subcarrier MPSK/MDPSK modulated optical wireless communications in lognormal turbulence

Author

Xuegui Song ; Fan Yang ; Julian Cheng ; Alouini, Mohamed-Slim

Author_Institution

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

fYear

2015

fDate

9-12 March 2015

Firstpage

41

Lastpage

45

Abstract

Bit-error rate (BER) performance of subcarrier M-ary phase-shift keying (MPSK) and M-ary differential phase-shift keying (MDPSK) is analyzed for optical wireless communications over the lognormal turbulence channels. Both exact BER and approximate BER expressions are presented. We demonstrate that the approximate BER, which is obtained by dividing the symbol error rate by the number of bits per symbol, can be used to estimate the BER performance with acceptable accuracy. Through our asymptotic analysis, we derive closed-form asymptotic BER performance loss expression for MDPSK with respect to MPSK in the lognormal turbulence channels.

Keywords

error statistics; optical communication; phase shift keying; approximate BER expressions; asymptotic analysis; bit-error rate performance; exact BER expressions; lognormal turbulence; subcarrier M-ary phase-shift keying and M-ary differential phase-shift keying; subcarrier MPSK-MDPSK modulated optical wireless communications; symbol error rate; Atmospheric modeling; Bit error rate; Lead; Optical fiber communication; Phase shift keying; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications and Networking Conference (WCNC), 2015 IEEE

Conference_Location

New Orleans, LA

Type

conf

DOI

10.1109/WCNC.2015.7127442

Filename

7127442