Due to high data rates, license-free spectrum, and immunity to electromagnetic interference, free-space optical (FSO) links are being considered as a potential candidate to meet the ever-increasing traffic demands of users. The FSO links remain less explored, as their performance depends on environmental conditions such as dust, fog, and clouds. Such conditions do not affect the radio frequency (RF) links in a similar way; however, RF resources are scarce. As an ultimate solution to this performance/scarcity dilemma, we propose a fuzzy logic-based hybrid architecture of FSO and RF links, which can be used to enhance reliability and resource efficiency. We present an intelligent soft switching mechanism between FSO and RF links using a fuzzy inference system to achieve the maximum link reliability and provide heterogeneous wireless services.

中文翻译：

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使用软交换的基于衰减的混合RF / FSO链路

由于高数据速率，免许可证频谱和抗电磁干扰能力，自由空间光（FSO）链路被认为是满足用户不断增长的流量需求的潜在选择。FSO链接的探索取决于环境条件，例如灰尘，雾气和云雾，因此探索的机会仍然很少。这样的条件不会以类似的方式影响射频（RF）链路；但是，RF资源是稀缺的。作为解决此性能/稀缺性难题的最终解决方案，我们提出了一种基于模糊逻辑的FSO和RF链路混合体系结构，该体系结构可用于提高可靠性和资源效率。我们提出了一种使用模糊推理系统在FSO和RF链路之间的智能软切换机制，以实现最大的链路可靠性并提供异构无线服务。