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Optical preamplification introduces non-Gaussian electrical domain noises (beat noises) to digital pulse position modulation (DPPM) free-space optical (FSO) communication systems impaired by atmospheric turbulence, which do not appear for a simple PIN photodiode-based FSO receivers and thus necessitate a more sophisticated approach to bit error rate (BER) modelling. To explore this BER performance...
The use of an optical pre-amplifier at the receiver of free-space optical (FSO) communication systems necessitates the consideration of both turbulence and amplified spontaneous emission (ASE) noise in performance modelling. Until now, this problem has been typically approached by the use of a Gaussian approximation (GA) for the conditional probability of error with averaging then performed using...