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Efficient coding techniques for ADO-OFDM in IM/DD systems

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Abstract

Optical wireless communication (OWC) is an age-long technology, which is based on optical data transmission through free space, and it can be implemented in both indoor and outdoor applications. Asymmetrically clipped DC-biased optical orthogonal frequency division multiplexing (ADO-OFDM) is a modulation scheme that can be utilized in indoor OWC systems. It is based on transmitting DC-biased optical OFDM (DCO-OFDM) for even-frequency subcarriers and asymmetrically clipped optical OFDM (ACO-OFDM) for odd-frequency subcarriers. The ADO-OFDM exhibits better optical power performance than those of the conventional ACO-OFDM and DCO-OFDM. The main disadvantage of ADO-OFDM is the clipping noise, which mainly affects the even subcarriers. So, in this paper, convolutional and turbo coding techniques are investigated to improve the bit error rate performance of the ADO-OFDM over Additive white Gaussian noise and diffuse channels. Simulation results show that the proposed coded ADO-OFDM using convolutional and turbo coding techniques achieves significantly lower BERs compared to that of the uncoded ADO-OFDM. In addition, turbo-coded ADO-OFDM gives the best BER performance.

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References

  1. Mossaad, M.S.A., Hranilovic, S., Lampe, L.: Visible light communications using OFDM and multiple LEDs. IEEE Trans. Wirel. Commun. 63(11), 4304–4313 (2015)

    Article  Google Scholar 

  2. Cheng, B.N., Yuksel, M., Kalyanaraman, S.: Using directionality in mobile routing. In: 2008 5th IEEE International Conference on Mobile Ad Hoc and Sensor Systems, Atlanta, GA, Sept. 29 2008–Oct. 2 2008, pp. 371–376. IEEE (2008)

  3. Langer, K.D., Grubor, J.: Recent developments in optical wireless communications using infrared and visible light. In: Proceedings 9th International Conference on Transparent Optical Networks (ICTON), Rome, Italy, pp. 146–151 (2007)

  4. Ebihara, K., Kamakura, K., Yamazato, T.: Spatially-modulated spacetime coding in visible light communications using 22 LED array. In: 2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), Ishigaki, pp. 320–323 (2014)

  5. Freda, M.M., Murray, J.M.: Low-complexity blind timing synchronization for ACO-OFDM-based optical wireless communications. In: 2010 IEEE Globecom Workshops, pp. 1031–1036

  6. Fernando, N., Hong, Y., Viterbo, E.: Flip-OFDM for optical wireless communications. In: Proceedings of IEEE Information Theory Workshop, Oct. 16–20, pp. 5–9 (2011)

  7. Armstrong, J., Lowery, A.J.: Power efficient optical OFDM. Electron. Lett. 42(6), 370–372 (2006)

    Article  Google Scholar 

  8. Dang, J., Zhang, Z., Wu, L.: A novel receiver for ACO-OFDM in visible light communication. IEEE Commun. Lett. 17(12), 2320–2323 (2013)

    Article  Google Scholar 

  9. Jiang, M.: Direct current bias optimization of the LDPC coded DCO-OFDM systems. IEEE Photon. Technol. Lett. 27(19), 2095–2098 (2015)

    Article  Google Scholar 

  10. Wu, N., Bar-Ness, Y.: A novel power-efficient scheme for asymmetrically and symetrically clipping optical (ASCOC)-OFDM for IM/DD optical systems. EURASIP J. Adv. Sig. Proc. 2015, 1–10 (2015)

    Article  Google Scholar 

  11. Li, X.: OFDM for Optical and Radio communications: performance and channel capacity of ACO-OFDM and performance of MIMO PCC OFDM with time offsets. Ph.D. dissertation, Monash University (2009)

  12. Wu, N., Bar-ness, Y.: An improved performance decoding technique for asymmetrically and symmetrically clipped optical (ASCO)-OFDM. In: Appear in Asilomar Conference on Signals, Systems, and Computers (2014)

  13. Dissanayake, S.D., Armstrong, J.: Comparison of ACO-OFDM, DCO-OFDM and ADO-OFDM in IM/DD systems. J. Lightw. Technol. 31(7), 1063–1072 (2013)

    Article  Google Scholar 

  14. Lee, D.C., Kahn, J.M.: Experimental 25-Mb/s wireless infrared link using 4-PPM with scalar decision-feedback equalization. In: IEEE International Conference on Communications, ICC98, 1998., vol. 1, pp. 26–30, June 7–11 (1998)

  15. Carruthers, J.B., Kahn, J.M.: Modeling of nondirected wireless Infrared channels. IEEE Trans. Commun. 45, 1260–1268 (1997)

    Article  Google Scholar 

  16. Ahuja, S.S., Sharma, V.: Optimal power control for convolutional and turbo codes over fading channels. In: Proceedings of IEEE Conference on Globecom ’02

  17. Rangarajan, A., Singh, S.K., Sharma, V.: Power allocation policies for convolutional and turbo coded systems over fading channels. TENCON 1, 155–159 (2003)

    Google Scholar 

  18. Duman, T.M., Salehi, M.: On optimal power allocation for turbo codes. In: Proceedings of IEEE International Symposium on Information Theory, Ulm., Germany, pp. 104 (1997)

  19. Salah, M.M., Raines, R.A., Temple, M.A., Bailey, T.G.: Energy allocation strategies for turbo codes with short frames. In: Proceedings of Information Tech: Coding and Computing, pp. 408–411 (2000)

  20. Bahl, L., Cocke, J., Jelinek, F., Raviv, J.: Optimal decoding of linear codes for minimizing symbol Error rate. IEEE Trans. Inf. Theor. 20, 284–287 (1974)

    Article  MathSciNet  MATH  Google Scholar 

  21. Huang, F.-H.: Evaluation of soft output decoding for turbo codes. Master Thesis, Virginia Tech (1997)

  22. Winstead, C., et al.: CMOS analog MAP decoder for (8,4) hamming code. IEEE J. Solid-State Circuits 39(1), 122–133 (2004)

    Article  Google Scholar 

  23. Vogt, J., Finger, A.: Improving the max-log-MAP turbo decoder. Electron. Lett. 36, 1937–1939 (2000)

    Article  Google Scholar 

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Correspondence to Muhammed Abd El-Aziz Eltoukhi.

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Eltoukhi, M.A.EA., Abd-Elnaby, M., El-Dolil, S.A. et al. Efficient coding techniques for ADO-OFDM in IM/DD systems. Photon Netw Commun 36, 128–139 (2018). https://doi.org/10.1007/s11107-018-0762-z

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  • DOI: https://doi.org/10.1007/s11107-018-0762-z

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