室内可见光通信光功率分布的实验研究

丁毅; 徐宁; 涂兴华; 马正北; 钱晨

doi:doi:10.3969/j.issn.1007461.2014.03.020

量子电子学报, 2014, 31 (3): 379, 网络出版: 2014-06-03

室内可见光通信光功率分布的实验研究

Experimental investigation optical power distribution of indoor visible light communication

论文大纲

丁毅 ^*徐宁涂兴华马正北钱晨

作者单位

南京邮电大学光电工程学院, 江苏南京 210046

光通信可见光通信多径效应光照度分布 optical communication visible light communication multipath effects illumination distribution

摘要

室内可见光通信技术是基于白光发光二极管(LED)光源的无线光通信技术, 在机场、医院等严格限制电磁干扰的场合可替代射频通信,应用前景广阔。鉴于室内可见光在传输过程中墙壁反射引起的多径效应对信号传输质量的影响,在4.0 m×4.0 m×2.8 m的房间内测量了室内可见光系统光源的光功率分布,结果表明光源的光信号经墙壁反射,会造成严重的多径效应,从而产生码间干扰。对室内可见光功率分布的仿真研究进行了实验验证,实验结果与理论仿真研究基本吻合。

Abstract

Indoor visible light communication technology is based on white light-emitting diode (LED) light source of optical wireless communication technology. At the airport, hospitals and other places where there are strict limits of electromagnetic interference, the technology can replace the radio communications, which has profound application prospects. Considering the influence of the wall reflections during the indoor visible light transmission, the indoor visible light illumination distribution was obtained by experimental measurements in a room of 4.0 m×4.0 m×2.8 m. It can be concluded that the light source of the optical signal reflected by the wall produces severe multipath effects, and then limits the communication rate. The experimental verification of indoor visible light distribution and simulation research was carried out. Moreover, the results of the experiment nearly agree with the theoretical simulation.

参考文献

[1] Xu Quan, Zhou Chun, Peng Jinhua, et al. Performance research of modulation schemes for indoor wireless optical communication ［J］. Chinese Journal of Quantum Electronics (量子电子学报), 2012, 29(5): 622-628 (in Chinese).

[2] Xu Ning, Xu Dantong, et al. Simulating and optimizing of Fresnel lens in visible light communications ［J］. Chinese Journal of Quantum Electronics(量子电子学报), 2012, 29(5): 629-63(in Chinese).

[3] Nakamura S. Present performance of InGaN based blue/green/yellow LEDs ［J］. Proc. of SPIE, 1997, 3002: 26-35.

[4] Minh H L, O’Brien D, Faulkner G, et al . 100 Mb/s NRZ visible light communications using a post equalized white LED ［J］. IEEE Photonics Technology Letters, 2009, 21(15): 1063-1065.

[5] Vucic J, Kottke C, Habel K, et al. 803 Mbit/s visible light WDM link- based on DMT modulation of a single RGB LED luminary ［C］. Optical Fiber Communication Conference, 2011.

[6] Vucic J, Kottke C, Nerreter S, et al. 230 Mbit/s via a wireless visible-light link based on OOK modulation of phosphorescent white LEDs ［C］. Optical Fiber Communication (OFC), 2010.

[7] Hashemi S K, Ghassemlooy Z, Chao L, et al. Orthogonal frequency division multiplexing for indoor optical wireless communications using visible light LEDS ［C］. Communication Systems Networks and Digital Signal Processing, 2008.

[8] Toshihiko Komine, Masao Nakagawa. A study of shadowing on indoor visible-light wireless communication utilizing plural white LED lightings ［J］. Wireless Personal Communications, 2005, 34(1-2): 211-225.

[9] Klaus-Dieter Langer, Jelena Grubor. Recent developments in optical wireless communications using infrared and visible light ［C］. Transparent Optical Networks 9th International Conference, 2007.

[10] Elgala H, Mesleh R, Haas H, et al. OFDM visible light wireless communication based on white LEDs ［C］. Vehicular Technology Conference, 2007.

[11] Wen Xiangyi, Wang Jinyuan, Xu Zhiyong, et al. Analysis and simulation of indoor visible power distribution ［J］. Journal of Military Communications Technology(军事通信技术), 2013, 34(1) (in Chinese).

[12] Zhang Li, Zhu Na, Zhang Ning. Study on suppression of multi-path effects for indoor LED wireless optical communication ［J］. Communications Technology(通信技术), 2010, 43(07): 198-200 (in Chinese).

丁毅, 徐宁, 涂兴华, 马正北, 钱晨. 室内可见光通信光功率分布的实验研究[J]. 量子电子学报, 2014, 31(3): 379. DING Yi, XU Ning, TU Xing-hua, MA Zheng-bei, QIAN Chen. Experimental investigation optical power distribution of indoor visible light communication[J]. Chinese Journal of Quantum Electronics, 2014, 31(3): 379.

室内可见光通信光功率分布的实验研究

关于本站 Cookie 的使用提示

全站搜索

室内可见光通信光功率分布的实验研究

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索