Electrical-SNR-optimized detection threshold for OOK IM/DD optical wireless communications

Author

Luanxia Yang ; Cheng, James ; Holzman, J.F.

Author_Institution

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

fYear

2013

fDate

18-21 June 2013

Firstpage

186

Lastpage

189

Abstract

We first revisit the problem of on-off keying demodulation with fixed detection thresholds over atmospheric turbulence channels. The resulting error floors are derived for a variety of turbulence channel models. To eliminate the irreducible error floors, we propose a detection system based on the electrical signal-to-noise ratio. Such a system offers performance compromise between the optimum system with time-varying detection threshold and the suboptimal system with fixed detection threshold.

Keywords

amplitude shift keying; atmospheric turbulence; optical communication; signal detection; time-varying channels; OOK IM-DD optical wireless communication; atmospheric turbulence channel model; electrical signal-to-noise ratio; electrical-SNR-optimized detection threshold; on-off keying demodulation; time-varying detection threshold; Adaptive optics; Adaptive systems; Bit error rate; Conferences; Optical fiber communication; Probability density function; Signal to noise ratio; Free-space optical communication; on-off keying; optical signal detection;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory (CWIT), 2013 13th Canadian Workshop on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/CWIT.2013.6621617

Filename

6621617