室内非朗伯型可见光多径无线信道特性研究On the Characteristics of Indoor Non-Lambertian Visible Light Multipath Wireless Channels
丁举鹏;易芝玲;马洪兵;李亚平;张志军;解鹏;郭学让;陈习锋;
摘要(Abstract):
在很大程度上,室内可见光通信系统的表现受到可见光多径传播信道的影响.已有研究尚局限于表征朗伯型光源波束配置下可见光无线信道特性,客观上忽视了对光源波束维度潜在差异化影响的关注与讨论.不同于已有研究,本文重点聚焦于非朗伯型波束条件下可见光无线信道的多径传播效应.为便于同传统朗伯型信道进行比较分析,本文主要从信道脉冲响应、信道频率响应以及信干噪比等方面进行量化表征.为不失一般性,在经典中型尺寸室内应用场景中,本文引入了两种典型的非朗伯波束进行量化建模分析.较之于朗伯波束,量化结果显示在信干噪比方面,两种非朗伯波束可分别引入约1 dB的增益及4 d B的损伤.因此,非朗伯波束客观上为可见光通信领域提供一个崭新的设计维度.
关键词(KeyWords): 非朗伯光波束;可见光通信;频域信道特性;无线光通信
基金项目(Foundation): 国家自然科学基金(62061043;61401420);; 新疆维吾尔自治区自然科学基金面上项目(2019D01C020);; 新疆维吾尔自治区全职引进高层次创新人才项目(042419004);; 新疆维吾尔自治区天池博士计划项目(04231200728);; 新疆大学自然科学基金项目(62031224624)
作者(Authors): 丁举鹏;易芝玲;马洪兵;李亚平;张志军;解鹏;郭学让;陈习锋;
DOI: 10.13568/j.cnki.651094.651316.2020.02.22.0002
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