非视线紫外通信中单散射通道冲击响应模型
Single-scatter channel impulse response model of non-line-of-sight ultraviolet communications
AI总结：
本文提出基于球坐标系的非视线紫外通信单散射通道冲击响应模型，相较于 prolate-spheroidal 坐标系更适用于实际应用，并通过蒙特卡罗方法验证了模型的计算效率提升。
摘要：
先前关于非视线（NLOS）紫外通信（UVC）中单散射传输时间特性研究基于 prolate-spheroidal 坐标系。本文提出一种基于球坐标系的新单散射通道冲击响应（CIR）模型，该模型在实际应用中比 prolate-spheroidal 坐标系更自然且易理解。此外，提供了广泛接受的基于蒙特卡罗（MC）的 NLOS UVC 信道模型结果，以验证所提出的单散射 CIR 模型。结果表明，所提出的单散射 CIR 模型在评估 NLOS UVC 信道时间特性时的计算时间成本降低至 MC 方法的不到 0.7%，且在准确性方面具有可比性。
英文摘要：
Previous studies on the temporal characteristics of single-scatter transmission in non-line-of-sight (NLOS) ultraviolet communications (UVC) were based on the prolate-spheroidal coordinate system. In this work, a novel single-scatter channel impulse response (CIR) model is proposed in the spherical coordinate system, which is more natural and comprehensible than the prolate-spheroidal coordinate system in practical applications. Additionally, the results of the widely accepted Monte-Carlo (MC)-based channel model of NLOS UVC are provided to verify the proposed single-scatter CIR model. Results indicate that the computational time costed by the proposed single-scatter CIR model is decreased to less than 0.7% of the MC-based one with comparable accuracy in assessing the temporal characteristics of NLOS UVC channels.
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