Browse > Article
http://dx.doi.org/10.12815/kits.2016.15.3.146

Parallel Coding Scheme for Flicker Mitigation in MIMO-VLC  

Jeong, Jin-uk (Kyung Hee University)
Lee, Kye-san (Kyung Hee University)
Seo, Hyo-duck (Kyung Hee University)
Han, Doo-hee (Kyung Hee University)
Lee, Kyu-jin (Semyung University)
Publication Information
The Journal of The Korea Institute of Intelligent Transport Systems / v.15, no.3, 2016 , pp. 146-154 More about this Journal
Abstract
Visible light communication using LED is a technique for transmitting digital data using the light of the LED. Recently, high-speed data rate plays an important role. Therefore, many scholars have researched the MIMO-VLC which is able to increase data rate using a lot of LED transmitters. However, it has problems such as light interference and flicker when transmitting different bit. Many researcher have focused on reduce interference. However it is not considered about flicker problem. Flicker is defined unstable brightness. It occurred the tired of human eyes, lowers eyesight and also decreases concentration. In order to solve this flicker problem in MIMO-VLC, we propose the PFM(Parallel Flicker Mitigation) code. PFM code using combinatorial theory can maintain constant brightness the whole bit duration. Therefore, it is possible to assure the brightness by confirm simulation results.
Keywords
Visible Light Communication; Flicker; MIMO; Pattern coding; LED;
Citations & Related Records
연도 인용수 순위
  • Reference
1 IEEE 802.15.7 WPAN Task Group 7 (TG7) Visible Light Communication, http://www.ieee802.org/15/pub/TG7.html, 2016.6.22.
2 Tanaka Y.(2002), "A Study on Optical Wireless Communication Systems and Their Applications," ph.D dissertation, Keio University.
3 Lubin Z., Dominic C. O., Hoa M. L., Grahame E. F., Kyungwoo L., YunJe O. and Eun T. W.(2009), "High data rate multiple input multiple output (MIMO) optical wireless communications using white LED lighting," IEEE J. Selected Areas In Communications, vol. 27, no. 9. pp.1-2.   DOI
4 Kim K. T.(2013), "An Iterative Layered Interference Cancellation Approach for Improving the Performance of BER in VLC-OFDM system," MS. dissertation, Kyung Hee University.
5 Nuwanpriya A., Ho S. -W. and Chen C. S.(2014), "Angle diversity receiver for indoor MIMO visible light communications," in Proc. IEEE Globecom Workshops (Optical Wireless Communications), pp. 529-534.
6 Wang T. Q., Sekercioglu Y. A. and Armstrong J.(2013), "Analysis of an Optical Wireless Receiver Using a Hemispherical Lens with Application in MIMO Visible Light Communications," J. Lightwave Tech., vol. 31, pp.1744-54.   DOI
7 Chen T., Liu L., Tu B., Zheng Z. and Hu W. (2014), "High-Spatial-Diversity Imaging Receiver Using Fisheye Lens for Indoor MIMO VLCs," IEEE Photonics Technology Letters, vol. 26, no. 22, November 15, pp.1-2.   DOI
8 Seo H. D.(2013), "Performance Evaluation of the Time Synchronization Delay Diversity in Indoor Optical OFDM system using LEDs," MS. dissertation, Kyung Hee University.
9 Wilkins A. Veitch J. and Lehman B.(2010), "LED lighting flicker and potential health concerns: IEEE Standard PAR1789 Update," in Proc. IEEE Energy Conv. Congress Expo., pp.171-178.
10 Bai B. Xu Z. and Fan Y.(2010), "Joint LED Dimming and High Capacity Visible Light Communication by Overlapping PPM," in Proc. 19th Annu. Wireless Opt. Commun. Conf., Shanghai, China, pp.71-75.
11 Roberts R. D., Rajagopal S. and Lim S. K.(2011), "IEEE 802.15.7 Physical Layer Summary," GLOBECOM Workshops, 2nd IEEE Workshop on Optical Wireless Communications, Houston, USA, pp.772-776.
12 Hall M.(1980), Combinatorial Theory, Wiley, New York.