BER analysis of IM/DD FSO system with APD receiver over gamma-gamma turbulence | Zendy

Milica Petković | Zendy; Goran T. Djordjević | Zendy; Dejan Milić | Zendy; Bata Vasić | Zendy

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BER analysis of IM/DD FSO system with APD receiver over gamma-gamma turbulence

Author(s) -

Milica Petković,

Goran T. Djordjević,

Dejan Milić,

Bata Vasić

Publication year - 2014

Publication title -

serbian journal of electrical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.133

H-Index - 5

eISSN - 2217-7183

pISSN - 1451-4869

DOI - 10.2298/sjee131208006p

Subject(s) - avalanche photodiode , bit error rate , physics , noise (video) , optics , shot noise , keying , free space optical communication , optical communication , electronic engineering , electrical engineering , detector , engineering , computer science , channel (broadcasting) , artificial intelligence , image (mathematics)

In this paper, the bit-error rate (BER) performance of intensity modulated with direct detection (IM/DD) free space optical (FSO) system using the on-off keying (OOK) and avalanche photodiode (APD) receiver is analyzed. The intensity fluctuations of the received optical signal are modeled by gamma gamma distribution, while both zero and nonzero inner scale models are observed. The total receiver noise includes APD shot noise and thermal noise. The BER expression is theoretically derived and numerical results are presented. The results illustrate the BER dependence on the turbulence strength, propagation path length, APD gain and noise temperature. [Projekat Ministarstva nauke Republike Srbije, br. TR-32028 i br. III-44006

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