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It has been well-known in optical wireless communications (OWC) that both spatial and cooperative diversities are effective methods for mitigating the impact of fading channels. Cooperative diversity based on multihop relaying could significantly improve the system performance, especially over long distances, its cost is nevertheless increased proportionally with the increase of the number of hops...
In this paper, we investigate the cooperative diversity technique as a candidate solution for combating turbulence-induced fading over free-space optical (FSO) links. In particular, we propose a novel cooperation strategy that is suitable for quantum-limited FSO systems with any number of relays and we derive closed-form expressions for the error performance of this strategy. In scenarios where the...
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