| 室内可见光蜂窝网络信道特性研究 |
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| 引用本文： | 郎磊,贾倩.室内可见光蜂窝网络信道特性研究[J].光电子．激光,2015,26(1):81-85. |
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| 作者姓名： | 郎磊 贾倩 |
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| 作者单位： | 中国电子科技集团公司 第五十四研究所,河北 石家庄 050081;中国电子科技集团公司 第五十四研究所,河北 石家庄 050081 |
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| 基金项目： | 中国电子科技集团公司技术创新基金-青年人才(EX131150092)资助项目 (中国电子科技集团公司 第五十四研究所,河北 石家庄 050081) |
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| 摘 要： | 基于可见光通信(VLC)技 术的LED蜂窝网络,设想作为第5代移动通信技术在室内应用的主要备选方式之一,得到越来 越多的关注。本 文采用广义光线追踪算法对符合蜂窝布局的室内可见光信道特性进行研究,分析了不同LED 发光角度条件 下信道冲击响应、路径损耗和信道时延等信道特性。随着LED半功率角从30°增大到60°, 系统路径损耗 与信道时延也整体增大,其中总体路径损耗变化范围为32～36.5dB ,信道时延的变化范围为0.4～1.5ns。
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| 关 键 词： | 可见光通信(VLC) 蜂窝网络 光线追踪算法 |
| 收稿时间： | 2014/10/9 0:00:00 |
Investigation of channel characteristic of indoor optical cellular communication s network based on visible light |
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| Affiliation: | The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081,China;The 54th Research Institute of China Electronics Technology Group Corporation, Shijiazhuang 050081,China |
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| Abstract: | Visible light communication (VLC) is a novel medium-short range opti cal wireless communication with the advantages of immunity to electromagnetic radiation,low power consumpti on and high transmission rate. In order to loom the radio frequency crisis,the pioneer VLC technology is chose n to provide a new solution for medium-short wireless communication.Optical cellular network based on VLC is c onsidered carefully as a potential candidate for 5G mobile applications under indoor conditions.In this paper,a generalized ray-tracing algorithm is selected to analyze the indoor channel characteristics for optical cellular network.The influence of impulse response,path loss and channel delay is analyzed under conditions of di fferent LED semi-power angles. On the whole,the path loss and channel delay increase as the LED semi-power an gle increases.The total path loss and channel delay vary from 32dB to 36.5dB and 0.4ns to 1.5ns,respectivel y. |
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| Keywords: | visible light communication (VLC) optical cellular network ray-tracing algori thm |
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