室内可见光通信中的分数间隔均衡技术

王俊波; 谢秀秀; 曹玲玲; 盛明; 冯敏

doi:10.3788/OPE.20122001.0024

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室内可见光通信中的分数间隔均衡技术

现代应用光学 | 更新时间：2020-08-12

- 室内可见光通信中的分数间隔均衡技术
- Fractionally spaced equalizer for indoor visible light communication system
- 光学精密工程 2012年20卷第1期页码：24-30
- 作者机构：
  
  南京航空航天大学电子信息工程学院,江苏南京,210016
- 作者简介：
- 基金信息：
  
  国家自然科学基金资助项目(No. 61102068)();东南大学移动通信国家重点实验室开放研究基金资助课题(No.2010D01)();教育部高等学校博士学科点专项科
- DOI：10.3788/OPE.20122001.0024
  中图分类号： TN929.1
- 收稿日期：2011-06-23，
  
  修回日期：2011-08-30，
  
  网络出版日期：2012-01-25，
  
  纸质出版日期：2012-01-25
- 稿件说明：
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王俊波, 谢秀秀, 曹玲玲, 盛明, 冯敏. 室内可见光通信中的分数间隔均衡技术[J]. 光学精密工程, 2012,20(1): 24-30

WANG Jun-bo, XIE Xiu-xiu, CAO Ling-ling, SHENG Ming, FENG Min. Fractionally spaced equalizer for indoor visible light communication system[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 24-30
王俊波, 谢秀秀, 曹玲玲, 盛明, 冯敏. 室内可见光通信中的分数间隔均衡技术[J]. 光学精密工程, 2012,20(1): 24-30 DOI： 10.3788/OPE.20122001.0024.

WANG Jun-bo, XIE Xiu-xiu, CAO Ling-ling, SHENG Ming, FENG Min. Fractionally spaced equalizer for indoor visible light communication system[J]. Editorial Office of Optics and Precision Engineering, 2012,20(1): 24-30 DOI： 10.3788/OPE.20122001.0024.

摘要

研究了室内可见光通信系统分数间隔均衡技术

以降低码间干扰对该通信系统性能的影响。针对室内可见光通信系统的传输特点和信号调制特性

建立了室内可见光通信链路模型;在此基础上

提出了分数间隔均衡方法

并利用最小均方误差准则优化设计均衡器。最后

通过计算机仿真

对提出的分数间隔均衡方法进行了性能评估。实验结果表明

相同误码率条件下

/2分数间隔均衡器比符号间隔均衡器的性能优1~2 dB

能够更有效地抑制由信道多径效应等引起的码间干扰

提高信号传输的可靠性。

Abstract

The Fractionally Spaced Equalization (FSE) technology is investigated to mitigate the effects of Inter-symbol Interference (ISI) on the indoor Visible Light Communication (VLC) systems. Based on the propagation properties and signal modulation characteristics of indoor VLC systems

a link model for the indoor VLC communications is described

then the FSE method is proposed by using the link model. Furthermore

based on the minimum Mean Square Error (MSE) criterion

the FSE is optimized. Finally

the performance of the proposed FSE theory is evaluated by computer simulation. Experimental results indicate that the performance of

/2-fractionally spaced equalizer has improved 1-2 dB than that of the symbol interval equalizer in the same Bit Error Ratio(BER). It can eliminate the effects of the ISI induced by the multipath effectively

and can improve the reliability of signal transmission.

关键词

Keywords

references

金鹏,喻春雨,周奇峰,等. LED在道路照明中的光效优势 [J].光学精密工程,2011,19(1):51-55. JIN P, YU CH Y, ZHOU Q F, et al.. Superior application of LED to street lighting[J].Opt. Precision Eng.,2011,19(1):51-55.(in Chinese)[2] 赵会富,刘华,孙强,等. 基于折射/全反射/反射/折射结构的LED准直系统的设计 [J].光学精密工程,2011,19(7):1472-1479. ZHAO H F, LIU H, SUN Q, et al.. Design of RIXR LED collimation system[J].Opt. Precision Eng.,2011,19(7):1472-1479.(in Chinese)[3] 郭磐,许廷发,倪国强. 一种低功耗的红外无线视频传输系统 [J].光学精密工程,2007,15(6):930-934. GUO P, XU T F, NI G Q. A low power wireless infrared video transmission system[J].Opt. Precision Eng., 2007, 15(6): 930-934. (in Chinese)[4] KOMINE T, NAKAGAWA M. Performance evaluation of visible-light communication system using white LED lightings . Proc. of Ninth International Symposium on Computers and Communications,2004:258-263.[5] KOMINE T, NAKAGAWA M.Fundamental analysis for visible-light communication system using LED lights[J].IEEE Transon Consumer Electronics, 2004, 50(1):100-107.[6] TANAKA Y, KOMINE T, HARUYAMA S, et al.. Indoor visible communication utilizing plural white LEDs as lighting . The 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications(PIMRC2001), San Diego, CA, 2001:81-85.[7] DOUSEKI T. A batteryless optical-wireless system with white-LED illumination . The 15th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, Barcelona, Spain,2004:2529-2533.[8] OBRIEN D, MINH H L, ZENG L. et al..Indoor visible light communication: challenges and prospects[J].SPIE, 2008,7091:709106.[9] LANGER K D,VUCIC J, KOTTKE C,et al..Advances and prospects in high-speed information broadcast using phosphorescent white-light LEDs . The 11th International Conference on Transparent Optical Networks, Azores, Portugal, 2009:1-6.[10] 丁德强, 柯熙政. 可见光通信及其关键技术研究 [J]. 半导体光电, 2006, 27(1):114-117. DING D Q, KE X ZH. Visible light communication and research on its key techniques[J]. Semiconductor Optoelectronics, 2006, 27(1):114-117. (in Chinese)[11] BARRY J R, KAHN J M, KRAUSE W J,et al.. Simulation of multipath impulse response for indoor wireless optical channels [J].IEEE Journal on Selected Areas in Communication,1993,11(3):367-379.[12] FAN K, KOMINE T, TANAKA Y, et al..The effect of reflection on indoor visible-light communication system utilizing white LEDs .The 5 th International Symposium on Wireless Personal Multimedia Communications, Sheraton Waikiki, Hawaii,2002,2:611-615.[13] CHOI J H, KOO S W ,KIM J Y.Influence of optical path difference on visible light communication systems . The 9th International Symposium on Communications and Information Technology , Incheon, Korea, 2009:1247-1251.[14] KOMINE T, LEE J H, HARUYAMA S, et al..Adaptive equalization system for visible light wireless communication utilizing multiple white LED lighting equipment[J].IEEE Transactions on Wireless Communications,2009, 8(6):2892-2900.[15] MARSH G W , KAHN J M. Performance evaluation of experimental 50-Mb/s diffuse infrared wireless link using on-off keying with decision-feedback equalization[J].IEEE Trans. on Commun., 1996, 44(11): 1496-1504.[16] LANGER K D, GRUBOR J.Recent developments in optical wireless communications using infrared and visible light .International Conference on Transparent Optical Networks ,Rome, Italy 2007, 3:146-151.[17] WANG J B, JIAO Y, DANG X Y, et al..Training sequence based channel estimation for indoor visible light communication system [J].Optoelectronics Letters, 2011,7(3):213-216.[18] WANG J B, JIAO Y, SONG X Y, et al.. Complementary-sequences-based channel estimation for diffuse wireless optical communications[J]. Opt. Precision Eng., 2011, 50(7):075003-1-6.[19] KAHN J M, BARRY J R. Wireless infrared communications[J].Proceedings of the IEEE,1997,85(2):265-298.[20] KOMINE T, LEE J H, HARUYAMA S, et al..Adaptive equalizaiton for indoor visible-light wireless communication systems . Proceedings of Asia-Pacific Conference on Communications, Perth, Australia,2005:294-298.[21] KOMINE T, NAKAGAWA M.Integrated system of white LED visible light communication and power-line communication[J].IEEE Transactions on Consumer Electronics, 2003, 49(1): 71-79.[22] AL-DHAHIR N, IOFFI J M. MMSE decision-feedback equalizers: finite-length results[J].IEEE Trans. on Information Theory, 1995,41(4):961-975.

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