Dual-Hop Optical Communication Systems Over Málaga Turbulence Under Pointing Error Impairments With Decode-and-Forward Protocol

As a promising technology, free-space optical (FSO) communication plays an important role in the next generation of wireless communication. A dual-hop FSO system with decode-and-forward (DF) protocol is proposed this paper, considering influences atmospheric turbulence (AT), absorption and pointing error impairments, which Málaga distribution model used to characterize fading caused by AT each link. The end-to-end statistical expressions our Málaga-Málaga are derived, such as cumulative function (CDF), probability density moment generating function. Thereafter, using above results, accurate outage probability, average bit rate (ABER) ergodic capacity deduced under direct detection intensity modulation heterodyne techniques. Furthermore, asymptotic for CDF ABER at high signal-to-noise ratio well simplified from simple basic functions obtained. effects different impairments conditions on analyzed based theoretical numerical results. Finally, Monte Carlo simulation results indicate that all novel basically consistent