TECHNOLOGY Design And Analysis of Transceiver Using Co-Operative Diversity to Reduce Fading Over FSO Links
2014
In this paper, To combat against the atmospheric turbulence induced fading over FSO link a spatial diversity technique is used to design the transceiv er. Cooperative diversity is proposed and analyzed in noncoherent FSO communications with intensity modulation and direct detection (IM/DD). The error performa nce is derived in semi analytical and closed form expressi ons in the presence and absence of background radia tion respectively. Performance analysis is carried out i n the four strategies over both Rayleigh and lognor mal fading models. This analysis may recommend the usage of the FSO links in the higher layers. After depth anal ysis, a technique is adopted from the possible solutions to mitigate building sway and atmospheric effects at the network layer.
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