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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃鼎偉 | |
| dc.contributor.author | Wei-Han Cheng | en |
| dc.contributor.author | 程威翰 | zh_TW |
| dc.date.accessioned | 2021-06-08T01:02:00Z | - |
| dc.date.copyright | 2015-02-03 | |
| dc.date.issued | 2014 | |
| dc.date.submitted | 2014-10-17 | |
| dc.identifier.citation | [1] Toshihiko Commines, and Masao Nakagawa, “Fundamental Analysis for Visible-Light Communication System using LED Lights”, IEEE Transactions on Consumer Electronics, Vol. 50, pp. 100 – 107, 2004
[2] Hidemitsu Sugiyama, Shinichiro Haruyama, and Masao Nakagawa, “Brightness Control Methods for Illumination and Visible-Light Communication Systems”, Conference on Wireless and Mobile Communications , pp.78, 2007 [3] Richard D. Roberts, Sridhar Rajagopal, and Sang-Kyu Lim “IEEE 802.15.7 Physical Layer Summary”, IEEE GLOBECOM Workshops, pp. 772 – 776, 2011 [4] BerilInan, S. C. Jeffrey Lee, Sebastian Randel, Ioannis Neokosmidis, Antonius M. J. Koonen, and Joachim W. Walewski “Impact of LED Nonlinearity on Discrete Multitone Modulation” Journal of Optical Communications and Networking, Vol. 1, pp. 439-451, 2009 [5] T. Tamura, T. Setomoto and T. Taguchi, “Fundamental characteristics of the illuminating light source using white LED based on InGaN semiconductors,” Trans. IEE Japan, vol. 120-A, pp. 244-249, 2000. [6] T. Taguchi, “Technological innovation of high-brightness light emitting diodes (LEDs) and a view of white LED lighting system” OPTRONICS, vol. 19, pp.113-119, 2000. [7] T. Mukai and S. Nakamura, “White and UV LEDs,” OYO BUTURI, vol.68, pp. 152-155, 1999. [8] Eun Tae Won, Dongjae Shin, D.K. Jung, Y.J. Oh, Taehan Bae, Hyuk-Choon Kwon, Chihong Cho and Jaeseung Son “Working Group for Wireless Personal Area Networks(WPANs)”, IEEE 802.15, pp. 12 – 19, 2001. [9] http://en.wikipedia.org/wiki/Light-emitting_diode, accessed in September 2014 [10] A. M. Khalid, G. Cossu, R. Corsini, P. Choudhury and E. Ciaramella “1-Gb/s Transmission Over a Phosphorescent White LED by Using Rate-Adaptive Discrete Multitone Modulation” Vol 4, pp. 1465 - 1473 2012. [11] Fang-Ming Wu1, Chun-Ting Lin1, Chia-Chien Wei, Cheng-Wei Chen1,Zhen-Yu Chen2, and Hou-Tzu Huang1 “3.22-Gb/s WDM Visible Light Communication of a Single RGB LED Employing Carrier-Less Amplitude and Phase Modulation” OFC/NFOEC Technical Digest, OTh1G, 2013. [12] Dong-Fang Zhang, Yi-Jun Zhu, and Yan-Yu Zhang “Multi-LED Phase-Shifted OOK Modulation Based Visible Light Communication Systems” IEEE PHOTONICS TECHNOLOGY LETTERS, vol. 25, pp. 2251 – 2254, 2013. [13] J. Grubor, S. Randel, K.-D. Langer, and J. W. Walewski, “Broadband information broadcasting using LED-based interior lighting,” Technol., vol. 26, pp. 3883–3892, 2008. [14] F.-M.Wu, C.-T. Lin, C.-C.Wei, C.-W. Chen, H.-T. Huang, and C.-H. Ho, “1.1-Gb/s white-LED-based visible light communication employing carrier-less amplitude and phase modulation,” IEEE Photon. Technol. Lett., vol. 24, pp. 1730–1732, 2012. [15] R. Mesleh, H. Elgala, and H. Haas, “LED nonlinearity mitigation techniques in optical wireless OFDM communication systems,” J. Opt. Commun. Netw., vol. 4, pp. 865–874, 2012. [16] Grzegorz Stepniak, and Jerzy Siuzdak,“Compensation of a VLC Phosphorescent White LED Nonlinearity by Means of Volterra DFE.” IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 25, pp. 1597– 1600 2013 [17] Tang, Q, Gupta, S.K.S, and Schwiebert, LBER “Performance Analysis of an On-off Keying based Minimum Energy Coding for Energy Constrained Wireless Sensor Application”, Conference on IEEE International, Vol. 4, pp. 2734 – 2738, 2005 [18] Eugene Shih , “Energy Constrained Wireless Sensor Application.”, 1-58113-422-3, 2001. [19] Amanda Johansson and Monica Sandstrom, “Sensitivity of the human visual system to amplitude modulated light”, 1401-2928, 2003.. [20] Zhao Gu Hong, “Comparison of White Light LED Driver with PWM and DC Signal for Light Detection of Human Vision”, Executive Master of Optics and Photonics, 2006. [21] John G. Proakis “Digital Communication Fifth Edition.”, 978-0072957167, 2007 [22] http://en.wikipedia.org/wiki/Manchester_code, accessed in September 2014 [23] http://arduino.cc/en/Main/arduinoBoardDue, accessed in September 2014 [24] http://www.cree.com/~/media/files/cree/led%20components%20and%20modules/ xlamp/data%20and%20binning/xlamp7090xre.pdf, accessed in September 2014 [25] http://www.vishay.com/docs/81502/bpv10.pdf, accessed in September 2014 [26] https://github.com/ezefranca/FSK-Arduino-iOS7 accessed in September 2014 [27] http://en.wikipedia.org/wiki/Phase-shift_keying accessed in September 2014 [28] Irfanud Din and Hoon Kim, “Energy-Efficient Brightness Control and Data Transmission for Visible Light Communication”, IEEE PHOTONICS TECHNOLOGY LETTERS, VOL. 26, pp781–784, 2014 | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/18373 | - |
| dc.description.abstract | 在發光二極體快速普及化的趨勢下,可見光通訊成為新起的研究。可見光通 訊系指利用發光二極體的照明系統額外加上信號源,使發光二極體同時具有照明 以及信號傳輸的功能,不僅可以減少能源消耗並且在特殊場合下,可見光通訊擁 有許多的好處。當可見光通訊要同時應用於照明以及資料傳輸下,亮度會不會因 傳輸資料而改變就成了重要的議題。而本篇論文也提出了一項能消除閃爍問題以 及同時具有自我校正功能的編碼法,以此來保證儘管在傳輸系統很差的情況下, 本篇所提供的編碼法一樣能解決亮度會隨傳輸資料改變的問題。
本論文一共分成五個章節,第一章為研究動機與研究貢獻,第二章介紹了發 光二極體與可見光通訊的原理,並且介紹了人眼的模擬系統,第三章為程式模擬, 使用一套演算法能使亮度不隨傳輸資料而改變,並且更進一步使之具有自我校正 錯誤碼功能,並將這些編碼方式做出各方面的討論與比較,第四章則是把實際的 可見光通訊系統實驗,並驗證第三章的演算法確實能消除亮度隨傳輸資料改變的 情況,第五章為結論以及未來發展。 | zh_TW |
| dc.description.abstract | White Light Emitting Diodes (LEDs) have attracted lots of attention because of their characteristics of low power consumption, high efficiency and long lifetime, and hence visible light communication (VLC) has become a new technology development. VLC means we can use LEDs not only as an illuminating device but also for data transmission. This property will decrease power consumption, and also in certain circumstances it has advantages compared to conventional illuminating devices. When LEDs are used both for illumination and data transmission, the issue of whether light intensity depends on the data being transmitted becomes very important. Therefore, in this thesis an algorithm is provided to eliminate the flicker situation while transmitting data. Also, a coding method is proposed which not only can eliminate the flicker but also has the ability of correcting the error bit.
This thesis is divided into five chapters. Chapter 1 gives the motivation and contribution of this research. Chapter 2 introduces the LED illumination theory, VLC system, and sensitivity of the human visual system. Chapter 3 provides the detail of MBNB and MBNB with error correction algorithm, simulation system, results and discussion. In chapter 4, the implementation of the VLC system is demonstrated to verify the simulation results. Chapter 5 gives the conclusions and recommendations for future work. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-08T01:02:00Z (GMT). No. of bitstreams: 1 ntu-103-R01941102-1.pdf: 2422936 bytes, checksum: 992bebd93f2d5822b66a3de2f59a18e4 (MD5) Previous issue date: 2014 | en |
| dc.description.tableofcontents | 誌謝 ...................................................................................................................................i
中文摘要.......................................................................................................................... ii ABSTRACT .................................................................................................................... iii CONTENTS .....................................................................................................................iv LIST OF FIGURES........................................................................................................ vii LIST OF TABLES.............................................................................................................x Chapter 1 Introduction..............................................................................................1 1.1 Motivation.......................................................................................................1 1.2 Contribution....................................................................................................3 Chapter 2 Theory of LED and VLC.........................................................................5 2.1 Introduction to LEDs ......................................................................................5 2.1.1 Generation of white-light with LEDs....................................................5 2.1.2 Key terminology for optical sources .....................................................8 2.2 Visible light communication system...............................................................9 2.2.1 Deployment of VLC............................................................................10 2.2.2 Limitations of VLC.............................................................................12 2.3 Temporal sensitivity of the human visual system.........................................15 2.3.1 The integration effect of sensed intensity on the visual system..........15 2.3.2 The critical flicker frequency ..............................................................16 Chapter 3 Coding method to achieve constant luminance and simulation of human visual system..............................................................................18 3.1 On-off keying (OOK) and Manchester coding method................................18 3.1.1 On-Off keying .....................................................................................18 3.1.2 Manchester coding ..............................................................................18 3.2 Introduction to MBNB..................................................................................19 3.3 Exponential model of LED response............................................................24 3.4 BER of MBNB coding .................................................................................26 3.5 Simulation of human visual response to the brightness of VLC ..................32 3.5.1 Human visual simulation system ........................................................32 3.5.2 MBNB performance on the human visual system ..............................34 3.6 Algorithm based on CMBNB to achieve error correction............................39 3.6.1 Introduction of error correction...........................................................40 3.6.2 Introduction of Hamming distance and Hamming code .....................41 3.6.3 The fundamental theory of CMBNB...................................................41 3.6.4 Simulation result of CMBNB..............................................................44 3.7 Comparison with other coding methods .......................................................47 Chapter 4 Implementation of VLC system............................................................50 4.1 Introduction to experimental system ............................................................50 4.2 Experimental equipment and circuit .............................................................52 4.2.1 Arduino and development environment..............................................52 4.2.2 LED and transmission circuit..............................................................55 4.2.3 Photodiode and receiver circuit...........................................................57 4.3 Experiment results ........................................................................................60 Chapter 5 Conclusions and recommendations for future work...........................67 REFERENCES................................................................................................................69 APPENDIX A..................................................................................................................73 APPENDIX B..................................................................................................................77 | |
| dc.language.iso | en | |
| dc.title | OOK 在可見光通訊系統下具有無閃爍及誤碼更正之編碼法 | zh_TW |
| dc.title | Flicker-Free and Error Correction Coding for On-Off Keying Visible Light Communication | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 103-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林晃巖,陳正言 | |
| dc.subject.keyword | 發光二極體,可見光通訊,人眼模擬,閃爍現象,自我校正, | zh_TW |
| dc.subject.keyword | LED,visible light communication,human eye simulation,flicker,error correction, | en |
| dc.relation.page | 89 | |
| dc.rights.note | 未授權 | |
| dc.date.accepted | 2014-10-17 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 光電工程學研究所 | zh_TW |
| 顯示於系所單位： | 光電工程學研究所 | |
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