AVERAGE BER ANALYSIS OF FREE-SPACE OPTICAL COMMUNICATIONS WITH ADAPTIVE THRESHOLD TECHNIQUE OVER EXPONENTIATED WEIBULL DISTRIBUTION | Zendy

Li Zhang | Zendy; Jingyuan Wang | Zendy; Liu Huang | Zendy; Han Zhang | Zendy; Ning Xu | Zendy

Open Access

AVERAGE BER ANALYSIS OF FREE-SPACE OPTICAL COMMUNICATIONS WITH ADAPTIVE THRESHOLD TECHNIQUE OVER EXPONENTIATED WEIBULL DISTRIBUTION

Author(s) -

Li Zhang,

Jingyuan Wang,

Liu Huang,

Han Zhang,

Ning Xu

Publication year - 2020

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl20102901

Subject(s) - weibull distribution , exponentiated weibull distribution , statistics , free space optical communication , mathematics , statistical physics , physics , optical communication , optics

Average bit error rate (BER) performance of on-off keying (OOK) modulation in a free space optical (FSO) system, which is based on adaptive threshold technique under atmospheric turbulence described by exponentiated Weibull (EW) distribution, is studied and compared with that of using fixed threshold technique. In order to solve the adaptive threshold, the equation is simplified by using the generalized Gauss-Laguerre polynomial function, which significantly improves the operational efficiency. The simulation results show that the adaptive threshold varies with the average transmitted power under different noise variances, receiving aperture sizes and turbulence conditions. Compared with the fixed threshold technique, the adaptive threshold technique can greatly improve the BER performance of FSO communication system.

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