论文标题
紫外线散射通信使用大气湍流通道上的子载波强度调制
Ultraviolet Scattering Communication Using Subcarrier Intensity Modulation over Atmospheric Turbulence Channels
论文作者
论文摘要
闭合形式的非视线（NLOS）湍流引起的波动模型是用于紫外线散射通信（USC）的，该模型对Meijer G功能进行了对接收的辐射波动进行建模。基于此模型，我们使用不同的调制技术研究了NLOS情况下USC系统的错误率。封闭形式的错误率结果是通过集成meijer g函数得出的。受不同湍流参数的分解的启发，我们使用了超几何函数的串联扩展，并通过四个无限序列的总和获得错误率表达式。数值结果表明，在NLOS情况下，我们的错误率结果是准确的。我们还研究了湍流影响与NLOS收发器配置之间的关系。数值结果表明，当两个LOS链路制定相同的距离时，湍流影响是长范围最强的，而短范围最弱的影响是最弱的。
A closed-form non-line-of-sight (NLOS) turbulenceinduced fluctuation model is derived for ultraviolet scattering communication (USC), which models the received irradiance fluctuation by Meijer G function. Based on this model, we investigate the error rates of the USC system in NLOS case using different modulation techniques. Closed-form error rate results are derived by integration of Meijer G function. Inspired by the decomposition of different turbulence parameters, we use a series expansion of hypergeometric function and obtain the error rate expressions by the sum of four infinite series. The numerical results show that our error rate results are accurate in NLOS case. We also study the relationship between the turbulence influence and NLOS transceiver configurations. The numerical results show that when two-LOS link formulates the same distance, the turbulence influence is the strongest for long ranges and the weakest for short ranges.
