Title :
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
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;
Conference_Titel :
Information Theory (CWIT), 2013 13th Canadian Workshop on
Conference_Location :
Toronto, ON
DOI :
10.1109/CWIT.2013.6621617
