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Channel Estimation for Realistic Indoor Optical Wireless Communication in ACO-OFDM Systems

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Abstract

In this paper, channel estimation problem in a visible light communication system is considered. The information data is transmitted using asymmetrical clipped optical orthogonal frequency division multiplexing. Channel estimation and symbol detection are performed by the Maximum Likelihood and the Linear Minimum Mean Square Error detection techniques, respectively. The system performance is investigated in realistic environment that is simulated using an indoor channel model. Two different channels are produced using the indoor channel model. Symbol error rate (SER) performance of the system with estimated channels is presented for QPSK and 16-QAM digital modulation types and compared with the perfect channel state information. As a mean square error (MSE) performance benchmark for the channel estimator, Cramer–Rao lower bound is also derived. MSE and SER performances of the simulation results are presented.

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References

  1. Koffman, I., & Roman, V. (2002). Broadband wireless access solutions based on OFDM access in IEEE 802.16. IEEE Communications Magazine, 40(4), 96–103.

    Article  Google Scholar 

  2. Reimers, U. (1998). Digital video broadcasting. IEEE Communications Magazine, 36(6), 104–110.

    Article  Google Scholar 

  3. Gonzalez, O., Perez, J. R., Rodriguez, S., Rabadan, J., & Ayala, A. (2006). Adaptive OFDM system for communications over the indoor wireless optical channel. IEE Proceedings—Optoelectronics, 153(4), 139–144.

    Google Scholar 

  4. Armstrong, J. (2009). OFDM for optical communications. The Journal of Lightwave Technology, 27(3), 189–204.

    Article  Google Scholar 

  5. Devasmitha, D. S., & Armstrong, J. (2013). Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD systems. The Journal of Lightwave Technology, 31(7), 1063–1072.

    Article  Google Scholar 

  6. Armstrong, J., & Schmidt, B. J. C. (2008). Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN. IEEE Communications Letters, 12(5), 343–345.

    Article  Google Scholar 

  7. Zhu, Y. J., Sun, Z. G., Zhang, J. K., & Zhang, Y. Y. (2015). A fast blind detection algorithm for outdoor visible light communications. IEEE Photonics Journal, 7(6), 1.

    Article  Google Scholar 

  8. Dogan, H., Sayli, O., & Panayirci, E. (2016). Pilot assisted channel estimation for asymmetrically clipped optical OFDM over visible light channels. In 4th international black sea conference on communications and networking, Varna, Bulgaria.

  9. Acar, Y., Dogan, H., Basar, E., & Panayirci, E. (2016). Interpolation based pilot-aided channel estimation for STBC spatial modulation and performance analysis under imperfect CSI. IET Communications, 10(14), 1820–1828.

    Article  Google Scholar 

  10. Yesilkaya, A., Karatalay, O., Ogrenci, A. S., & Panayirci, E. (2016). Channel estimation for visible light communications using neural networks. In The international joint conference on neural networks, Vancouver, BC, Canada.

  11. Ding, D., & Ke, X. (2010). A new indoor VLC channel model based on reflection. Optoelectronics Letters, 6(4), 295–298.

    Article  Google Scholar 

  12. Wu, B., Cheng, S., & Wang, H. (2005). Iterative channel estimation and signal detection in clipped OFDM. In Global telecommunications conference, St. Louis, MO.

  13. Wu, D., Wang, Z., Wang, R., He, J., Zuo, Q., & Zhao, H. (2012). Channel estimation for asymmetrically clipped optical orthogonal frequency division multiplexing optical wireless communications. IET Communications, 6(5), 532–540.

    Article  MathSciNet  Google Scholar 

  14. Asadzadeh, K., Dabbo, A., & Hranilovic, S. (2011). Receiver design for asymmetrically clipped optical OFDM. In Proceedings of IEEE GLOBECOM OWC Workshop, Houston, TX, USA.

  15. Bibi, N., Muhammad, N., & Cheetham, B. (2017). Inverted wrap-around limiting with Bussgang noise cancellation receiver for OFDM signals. Circuits, Systems, and Signal Processing, 37, 1–14.

    MathSciNet  Google Scholar 

  16. Bibi, N., Kleerekoper, A., Muhammad, N., & Cheetham, B. (2016). Equation-method for correcting clipping errors in OFDM signals. Springer Plus, 5(1), 931.

    Article  Google Scholar 

  17. Carruthers, J. B., & Kahn, J. M. (1997). Modeling of nondirected wireless infrared channels. IEEE Transactions on Communications, 45(10), 1260–1268.

    Article  Google Scholar 

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Authors and Affiliations

  1. Kadir Has University, Istanbul, Turkey

    Atilla Őzmen & Habib Şenol

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  1. Atilla Őzmen
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  2. Habib Şenol
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Correspondence to Atilla Őzmen.

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Őzmen, A., Şenol, H. Channel Estimation for Realistic Indoor Optical Wireless Communication in ACO-OFDM Systems. Wireless Pers Commun 102, 247–259 (2018). https://doi.org/10.1007/s11277-018-5837-8

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  • DOI: https://doi.org/10.1007/s11277-018-5837-8

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