Abstract
In this work, the performance of binary phase shift keying (BPSK) subcarrier intensity-modulated terrestrial free-space optical (FSO) communication link is analysed in the presence of noise and atmospheric turbulence. To ameliorate channel fading caused by the atmospheric turbulence, we propose a subcarrier time delay diversity (STDD) scheme in which the delayed versions of the original data are re-transmitted on different subcarriers. In short range links, a single re-transmission scheme results in an estimated gain of up to 4.5 dB in received irradiance.
Original language | English |
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Pages (from-to) | 499 - 506 |
Number of pages | 8 |
Journal | IET Communications |
Volume | 6 |
Issue number | 5 |
DOIs | |
Publication status | Published - Mar 2012 |
Keywords
- binary phase shift keying
- atmospheric turbulence