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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 14 — Jul. 4, 2011
  • pp: 13418–13427

Performance improvement by tilting receiver plane in M-QAM OFDM visible light communications

Zixiong Wang, Changyuan Yu, Wen-De Zhong, and Jian Chen  »View Author Affiliations


Optics Express, Vol. 19, Issue 14, pp. 13418-13427 (2011)
http://dx.doi.org/10.1364/OE.19.013418


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Abstract

We propose a scheme to improve the SNR distribution as well as the spectral efficiency of M-QAM OFDM signal for indoor visible light communication by tilting the receiver plane. Newton method is employed for the photo-detector to receive maximum power by finding the optimal tilting angle. This method is a fast algorithm that only three searching steps are needed. The simulation results show that in the case of one LED source, the maximum spectral efficiency improvement is 0.44bit/s/Hz when the launching power of LED source is 12W; while in the case of four LED sources, the maximum spectral efficiency improvement is 0.21bit/s/Hz when the total launching power of the four LED sources is 12W.

© 2011 OSA

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(060.4230) Fiber optics and optical communications : Multiplexing
(060.4510) Fiber optics and optical communications : Optical communications
(230.3670) Optical devices : Light-emitting diodes

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: March 29, 2011
Revised Manuscript: June 2, 2011
Manuscript Accepted: June 4, 2011
Published: June 27, 2011

Citation
Zixiong Wang, Changyuan Yu, Wen-De Zhong, and Jian Chen, "Performance improvement by tilting receiver plane in M-QAM OFDM visible light communications," Opt. Express 19, 13418-13427 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-14-13418


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References

  1. T. Komine and M. Nakagawa, “Fundamental analysis for visible-light communication system using LED lights,” IEEE Trans. Consum. Electron. 50(1), 100–107 (2004). [CrossRef]
  2. M. Z. Afgani, H. Haas, H. Elgala, D. Knipp, and W. Hirt, “Visible light communication using OFDM,” in International Conference on Testbeds and Research Infrastructures for the Development on Networks and Communities, 129–134 (2006).
  3. M. Zhang, Y. Zhang, X. Yuan, and J. Zhang, “Mathematic models for a ray tracing method and its applications in wireless optical communications,” Opt. Express 18(17), 18431–18437 (2010). [CrossRef] [PubMed]
  4. J. Vucic, C. Kottke, K. Habel, and K.-D. Langer, “803Mbit/s visible light WDM link based on DMT modulation of a single RGB LED luminary,” in Proc. OFC, Los Angeles, CA, OWB6 (2011).
  5. S. K. Hashemi, Z. Ghassemlooy, L. Chao, and D. Benhaddou, “Orthogonal frequency division multiplexing for indoor optical wireless communications using visible light LEDs,” in International Symposium on Communication Systems, Networks and Digital Signal Processing, 174–178 (2008).
  6. J. Armstrong, “OFDM for optical communications,” J. Lightwave Technol. 27(3), 189–204 (2009). [CrossRef]
  7. A. Svensson, “An introduction to adaptive QAM modulation schemes for known and predicted channels,” Proc. IEEE 95(12), 2322–2336 (2007). [CrossRef]
  8. J. R. Barry, Wireless Infrared Communications (Kluwer Academic Publishers, 2006).
  9. L. Zeng, D. O’Brien, H. Le-Minh, K. Lee, D. Jung, and Y. Oh, “Improvement of data rate by using equalization in an indoor visible light communication system,” in International Conference on Circuits and Systems for Communications, 678–682 (2008).
  10. I. Neokosmidis, T. Kamalakis, J. Walewski, B. Inan, and T. Sphicopoulos, “Impact of nonlinear LED transfer function on discrete multitone modulation: analytical approach,” J. Lightwave Technol. 27(22), 4970–4978 (2009). [CrossRef]
  11. http://www.effled.com/15W-high-power-led-p-58.html
  12. C. H. Edwards and D. E. Penney, Calculus (Prentice Hall, 2002).
  13. M. T. Heath, Scientific Computing—An Introductory Survey (McGraw-Hill, 2002).
  14. H. Elgala, R. Mesleh, and H. Haas, “Indoor broadcasting via white LEDs and OFDM,” IEEE Trans. Consum. Electron. 55(3), 1127–1134 (2009). [CrossRef]
  15. H. Nguyen and E. Shwedyk, A First Course in Digital Communications (Cambridge University Press, 2009).
  16. U. S. Jha and R. Prasad, OFDM towards Fixed and Mobile Broadband Wireless Access (Artech House, 2007).
  17. J. Proakis, Digital Communications (McGraw-Hill, 2008).

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