Abstract

The dc-biased optical orthogonal frequency division multiplexing (DCO-OFDM) system is experimentally demonstrated as an appealing candidate in future visible light communication (VLC) system. However, the intrinsic high PAPR drawback that the DCO-OFDM system suffers from still needs to be addressed and few effective approach has been found so far. To deal with this problem, in this paper, the tone reservation (TR) technique based the time domain kernel matrix (TKM-TR) schemes for reducing the PAPR are studied and applied to DCO-OFDM system. Aiming at the drawback of its severe tailing in previous TKM-TR schemes, first an improved TKM-TR scheme is proposed, in which the peak regrowth caused by severe tailing is eliminated by optimizing the scaling factors. In addition, considering the clipping ratio (CR) value in TKM-TR scheme is greatly related to the PAPR reduction performance, an extensively used heuristic global optimization algorithm, the particle swarm optimization (PSO) method is employed in TKM-TR to obtain a better CR for more PAPR reduction. Simulation results show that the improved TKM-TR scheme can efficiently address the tailing problem in previous TKM-TR schemes and achieve better PAPR reduction. Moreover, due to the powerful searching ability, PSO based TKM-TR scheme achieves more PAPR reduction and lower bit error rate (BER).

© 2017 Optical Society of America

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References

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  1. H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
    [Crossref]
  2. D. OBrien, L. Zeng, H. Le-Minh, G. Faulkner, J. W. Walewski, and S. Randel, “Visible light communications: challenges and possibilities,” in International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE, 2008), pp. 1–5.
  3. H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
    [Crossref]
  4. S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
    [Crossref]
  5. J. Armstrong and J. Schmidt, “Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN,” IEEE Commun. Lett. 12(5), 343–345 (2008).
    [Crossref]
  6. N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
    [Crossref]
  7. R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
    [Crossref]
  8. H. Elgala, R. Mesleh, and H. Haas, “A study of LED nonlinearity effects on optical wireless transmission using OFDM,” in International Conference on Wireless and Optical Communications Networks, (WOCN, 2009), pp. 1–5.
    [Crossref]
  9. K. Bandara, P. Niroopan, and Y. H. Chung, “PAPR reduced OFDM visible light communication using exponential nonlinear companding,” in International Conference on Microwaves, Communications, Antennas and Electronic Systems, (IEEE, 2013), pp.1–5.
    [Crossref]
  10. Z. H. Yu, R. J. Baxley, and G. T. Zhou, “Iterative clipping for PAPR reduction in visible light OFDM communications,” in Military Communications Conference, (IEEE, 2014), pp.1681–1686.
    [Crossref]
  11. H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
    [Crossref]
  12. N. Jacklin and Z. Ding, “A linear programming based tone injection algorithm for PAPR reduction of OFDM and linearly precoded systems,” IEEE Trans. Circ. Syst. 60(7), 1937–1945 (2013).
  13. Y. Hei, J. Liu, W. Li, X. Xu, and R. T. Chen, “Branch and bound methods based tone injection schemes for PAPR reduction of DCO-OFDM visible light communications,” Opt. Express 25(2), 595–604 (2017).
    [Crossref] [PubMed]
  14. J. Tellado, Multicarrier Modulation with Low PAR: Applications to DSL and Wireless (Kluwer Academic Press, 2000).
  15. P. Yu and S. Jin, “A Low Complexity Tone Reservation Scheme Based on Time-domain Kernel Matrix for PAPR Reduction in OFDM Systems,” IEEE Trans. Broadcast 61(4), 710–716 (2015).
    [Crossref]
  16. L. Wang and C. Tellambura, “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” IEEE Trans. Vehicular Technol. 57(3), 1675–1694 (2008).
    [Crossref]
  17. Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
    [Crossref]
  18. J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
    [Crossref]
  19. P. Y. Yu and S. B. Jin, “An enhanced TKM-TR method for PAPR reduction of OFDM signals with peak regrowth and peak residual reduced,” in International Conference on Communication Software and Networks, (IEEE, 2016), pp. 145–148.
    [Crossref]
  20. C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
    [Crossref]

2017 (1)

2015 (1)

P. Yu and S. Jin, “A Low Complexity Tone Reservation Scheme Based on Time-domain Kernel Matrix for PAPR Reduction in OFDM Systems,” IEEE Trans. Broadcast 61(4), 710–716 (2015).
[Crossref]

2014 (2)

H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
[Crossref]

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

2013 (1)

N. Jacklin and Z. Ding, “A linear programming based tone injection algorithm for PAPR reduction of OFDM and linearly precoded systems,” IEEE Trans. Circ. Syst. 60(7), 1937–1945 (2013).

2012 (3)

S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
[Crossref]

N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
[Crossref]

Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
[Crossref]

2011 (2)

H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
[Crossref]

R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
[Crossref]

2009 (1)

C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
[Crossref]

2008 (3)

J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
[Crossref]

J. Armstrong and J. Schmidt, “Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN,” IEEE Commun. Lett. 12(5), 343–345 (2008).
[Crossref]

L. Wang and C. Tellambura, “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” IEEE Trans. Vehicular Technol. 57(3), 1675–1694 (2008).
[Crossref]

Alejandro, C.

C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
[Crossref]

Armstrong, J.

J. Armstrong and J. Schmidt, “Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN,” IEEE Commun. Lett. 12(5), 343–345 (2008).
[Crossref]

Bandara, K.

K. Bandara, P. Niroopan, and Y. H. Chung, “PAPR reduced OFDM visible light communication using exponential nonlinear companding,” in International Conference on Microwaves, Communications, Antennas and Electronic Systems, (IEEE, 2013), pp.1–5.
[Crossref]

Baxley, R. J.

Z. H. Yu, R. J. Baxley, and G. T. Zhou, “Iterative clipping for PAPR reduction in visible light OFDM communications,” in Military Communications Conference, (IEEE, 2014), pp.1681–1686.
[Crossref]

Burchardt, H.

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

Chen, R. T.

Chen, W.

Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
[Crossref]

Chung, Y. H.

K. Bandara, P. Niroopan, and Y. H. Chung, “PAPR reduced OFDM visible light communication using exponential nonlinear companding,” in International Conference on Microwaves, Communications, Antennas and Electronic Systems, (IEEE, 2013), pp.1–5.
[Crossref]

Ding, Z.

N. Jacklin and Z. Ding, “A linear programming based tone injection algorithm for PAPR reduction of OFDM and linearly precoded systems,” IEEE Trans. Circ. Syst. 60(7), 1937–1945 (2013).

Elgala, H.

H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
[Crossref]

R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
[Crossref]

H. Elgala, R. Mesleh, and H. Haas, “A study of LED nonlinearity effects on optical wireless transmission using OFDM,” in International Conference on Wireless and Optical Communications Networks, (WOCN, 2009), pp. 1–5.
[Crossref]

Fernando, N.

N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
[Crossref]

Ge, J.

J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
[Crossref]

Gong, F.

J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
[Crossref]

Haas, H.

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
[Crossref]

H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
[Crossref]

H. Elgala, R. Mesleh, and H. Haas, “A study of LED nonlinearity effects on optical wireless transmission using OFDM,” in International Conference on Wireless and Optical Communications Networks, (WOCN, 2009), pp. 1–5.
[Crossref]

Hei, Y.

Hong, Y.

N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
[Crossref]

Hou, J.

J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
[Crossref]

Jacklin, N.

N. Jacklin and Z. Ding, “A linear programming based tone injection algorithm for PAPR reduction of OFDM and linearly precoded systems,” IEEE Trans. Circ. Syst. 60(7), 1937–1945 (2013).

Jin, S.

P. Yu and S. Jin, “A Low Complexity Tone Reservation Scheme Based on Time-domain Kernel Matrix for PAPR Reduction in OFDM Systems,” IEEE Trans. Broadcast 61(4), 710–716 (2015).
[Crossref]

Jin, S. B.

P. Y. Yu and S. B. Jin, “An enhanced TKM-TR method for PAPR reduction of OFDM signals with peak regrowth and peak residual reduced,” in International Conference on Communication Software and Networks, (IEEE, 2016), pp. 145–148.
[Crossref]

Li, W.

Lim, S. K.

S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
[Crossref]

Liu, J.

MarÍa, G. I.

C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
[Crossref]

Mesleh, R.

H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
[Crossref]

R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
[Crossref]

H. Elgala, R. Mesleh, and H. Haas, “A study of LED nonlinearity effects on optical wireless transmission using OFDM,” in International Conference on Wireless and Optical Communications Networks, (WOCN, 2009), pp. 1–5.
[Crossref]

Niroopan, P.

K. Bandara, P. Niroopan, and Y. H. Chung, “PAPR reduced OFDM visible light communication using exponential nonlinear companding,” in International Conference on Microwaves, Communications, Antennas and Electronic Systems, (IEEE, 2013), pp.1–5.
[Crossref]

Pedro, I.

C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
[Crossref]

Rajagopal, S.

S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
[Crossref]

Roberts, R.

S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
[Crossref]

Schmidt, J.

J. Armstrong and J. Schmidt, “Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN,” IEEE Commun. Lett. 12(5), 343–345 (2008).
[Crossref]

Serafimovski, N.

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

Tellambura, C.

Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
[Crossref]

L. Wang and C. Tellambura, “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” IEEE Trans. Vehicular Technol. 57(3), 1675–1694 (2008).
[Crossref]

Tsonev, D.

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

Videv, S.

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

Viterbo, E.

N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
[Crossref]

Wang, L.

L. Wang and C. Tellambura, “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” IEEE Trans. Vehicular Technol. 57(3), 1675–1694 (2008).
[Crossref]

Wang, Y.

Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
[Crossref]

Xu, W.

H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
[Crossref]

Xu, X.

Yu, P.

P. Yu and S. Jin, “A Low Complexity Tone Reservation Scheme Based on Time-domain Kernel Matrix for PAPR Reduction in OFDM Systems,” IEEE Trans. Broadcast 61(4), 710–716 (2015).
[Crossref]

Yu, P. Y.

P. Y. Yu and S. B. Jin, “An enhanced TKM-TR method for PAPR reduction of OFDM signals with peak regrowth and peak residual reduced,” in International Conference on Communication Software and Networks, (IEEE, 2016), pp. 145–148.
[Crossref]

Yu, Z. H.

Z. H. Yu, R. J. Baxley, and G. T. Zhou, “Iterative clipping for PAPR reduction in visible light OFDM communications,” in Military Communications Conference, (IEEE, 2014), pp.1681–1686.
[Crossref]

Yuan, Y.

H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
[Crossref]

Zhang, H.

H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
[Crossref]

Zhou, G. T.

Z. H. Yu, R. J. Baxley, and G. T. Zhou, “Iterative clipping for PAPR reduction in visible light OFDM communications,” in Military Communications Conference, (IEEE, 2014), pp.1681–1686.
[Crossref]

IEEE Commun. Lett. (1)

J. Armstrong and J. Schmidt, “Comparison of asymmetrically clipped optical OFDM and DC-biased optical OFDM in AWGN,” IEEE Commun. Lett. 12(5), 343–345 (2008).
[Crossref]

IEEE Commun. Mag. (3)

H. Elgala, R. Mesleh, and H. Haas, “Indoor optical wireless communication: Potential and state-of-the-art,” IEEE Commun. Mag. 49(9), 56–62 (2011).
[Crossref]

H. Burchardt, N. Serafimovski, D. Tsonev, S. Videv, and H. Haas, “VLC: beyond point-to-point communication,” IEEE Commun. Mag. 52(7), 98–105 (2014).
[Crossref]

S. Rajagopal, R. Roberts, and S. K. Lim, “IEEE 802.15.7 visible light communication: modulation schemes and dimming support,” IEEE Commun. Mag. 50(3), 72–82 (2012).
[Crossref]

IEEE Photonics Technol. Lett. (1)

H. Zhang, Y. Yuan, and W. Xu, “PAPR reduction for DCO-OFDM visible light communications via semidefinite relaxation,” IEEE Photonics Technol. Lett. 26(17), 1718–1721 (2014).
[Crossref]

IEEE Trans. Broadcast (2)

P. Yu and S. Jin, “A Low Complexity Tone Reservation Scheme Based on Time-domain Kernel Matrix for PAPR Reduction in OFDM Systems,” IEEE Trans. Broadcast 61(4), 710–716 (2015).
[Crossref]

Y. Wang, W. Chen, and C. Tellambura, “Genetic algorithm based nearly optimal peak reduction tone set selection for adaptive amplitude clipping PAPR reduction,” IEEE Trans. Broadcast 58(3), 462–471 (2012).
[Crossref]

IEEE Trans. Circ. Syst. (1)

N. Jacklin and Z. Ding, “A linear programming based tone injection algorithm for PAPR reduction of OFDM and linearly precoded systems,” IEEE Trans. Circ. Syst. 60(7), 1937–1945 (2013).

IEEE Trans. Commun. (1)

N. Fernando, Y. Hong, and E. Viterbo, “Flip-ofdm for unipolar communication systems,” IEEE Trans. Commun. 60(12), 3726–3733 (2012).
[Crossref]

IEEE Trans. Syst., Man, Cybernetics Part B (1)

C. Alejandro, G. I. MarÍa, and I. Pedro, “A new particle swarm method for nearest neighborhood classification,” IEEE Trans. Syst., Man, Cybernetics Part B 39(5), 1082–1091 (2009).
[Crossref]

IEEE Trans. Vehicular Technol. (2)

J. Hou, J. Ge, and F. Gong, “Tone Reservation Technique Based on Peak-Windowing Residual Noise for PAPR Reduction in OFDM Systems,” IEEE Trans. Vehicular Technol. 64(11), 5373–5378 (2008).
[Crossref]

L. Wang and C. Tellambura, “Analysis of clipping noise and tone reservation algorithms for peak reduction in OFDM systems,” IEEE Trans. Vehicular Technol. 57(3), 1675–1694 (2008).
[Crossref]

IEEE/OSA. J. Opt. Commun. Netw. (1)

R. Mesleh, H. Elgala, and H. Haas, “On the performance of different OFDM based optical wireless communication systems,” IEEE/OSA. J. Opt. Commun. Netw. 3(8), 620–628 (2011).
[Crossref]

Opt. Express (1)

Other (6)

J. Tellado, Multicarrier Modulation with Low PAR: Applications to DSL and Wireless (Kluwer Academic Press, 2000).

P. Y. Yu and S. B. Jin, “An enhanced TKM-TR method for PAPR reduction of OFDM signals with peak regrowth and peak residual reduced,” in International Conference on Communication Software and Networks, (IEEE, 2016), pp. 145–148.
[Crossref]

H. Elgala, R. Mesleh, and H. Haas, “A study of LED nonlinearity effects on optical wireless transmission using OFDM,” in International Conference on Wireless and Optical Communications Networks, (WOCN, 2009), pp. 1–5.
[Crossref]

K. Bandara, P. Niroopan, and Y. H. Chung, “PAPR reduced OFDM visible light communication using exponential nonlinear companding,” in International Conference on Microwaves, Communications, Antennas and Electronic Systems, (IEEE, 2013), pp.1–5.
[Crossref]

Z. H. Yu, R. J. Baxley, and G. T. Zhou, “Iterative clipping for PAPR reduction in visible light OFDM communications,” in Military Communications Conference, (IEEE, 2014), pp.1681–1686.
[Crossref]

D. OBrien, L. Zeng, H. Le-Minh, G. Faulkner, J. W. Walewski, and S. Randel, “Visible light communications: challenges and possibilities,” in International Symposium on Personal, Indoor and Mobile Radio Communications (IEEE, 2008), pp. 1–5.

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Figures (4)

Fig. 1
Fig. 1 The schematic diagram of the DCO-OFDM VLC system.
Fig. 2
Fig. 2 Average PAPR reduction comparison of different TR schemes.
Fig. 3
Fig. 3 PAPR reduction comparison of different TR methods.
Fig. 4
Fig. 4 BER comparison of different TR methods.

Tables (3)

Tables Icon

Table 1 The improved TKM-TR scheme

Tables Icon

Table 2 The PSO based TKM-TR method

Tables Icon

Table 3 The computational complexity of different TR schemes

Equations (23)

Equations on this page are rendered with MathJax. Learn more.

X k = { X k k = 1 , 2 , , N / 2 1 X N k * k = N / 2 + 1 , , N 1
x n = 1 N k = 0 N 1 X k e j 2 π k n / L N , n = 0 , 1 , 2 , , L N 1
P A P R = 10 log 10 max 0 n L N 1 | x n | 2 E [ | x n | 2 ]
x ^ = x + c = I D F T ( X + C )
X k + C k = { X k , k R c C k , k R
P A P R = 10 log 10 max 0 n L N 1 | x n + c n | 2 E [ | x n | 2 ]
p = [ p 0 , p 1 , , p L N 1 ] T = I D F T ( P )
P k = { 0 , k R c 1 , k R
f n = { x n A , | x n | > A 0 , | x n | A
S = { n | | f n | > 0 } = { s 0 , s 1 , , s M 1 }
x ^ = x M P β
β i = | f s i | / a m p p
c n e w = M p β n e w
q u t = l o w e r + ( u p p e r l o w e r ) * r a n d ( 0 , 1 ) , t = 1 , , T , u = 1 , , U
v u t + 1 = w t v u t + c 1 ( P b e s t u q u t ) + c 2 ( G b e s t q u t )
q u t + 1 = q u t + v u t + 1
y n , D C O = { A m , y n > A m y n , 0 y n A m 0 , y n 0
M U L TKM-TR = K ( M ¯ + L N M ¯ ) , D I V TKM-TR = K ( 2 M ¯ )
M U L Enhanced-TKM-TR = K ( M ¯ + L N M ¯ + ( V 1 ) L N ) , D I V Enhanced-TKM-TR = K ( 2 M ¯ + V 1 )
P ( P 1 L N ( M ¯ 1 ) + ( 1 P 1 ) P 2 L N ( M ¯ 2 ) + ( 1 P 1 ) ( 1 P 2 ) P 3 L N ( M ¯ 3 ) + )
P ( P 1 L N ( M ¯ 1 ) + ( 1 P 1 ) P 2 L N ( M ¯ 2 ) + ( 1 P 1 ) ( 1 P 2 ) P 3 L N ( M ¯ 3 ) + ) = P ¯ ( L N M ˜ )
M U L Improved-TKM-TR = K ( M ¯ + L N M ¯ + P ¯ ( L N M ˜ ) ) , D I V Improved-TKM-TR = K ( 2 M ¯ )
M U L PSO-TKM-TR = U T M U L TKM-TR , D I V PSO-TKM-TR = U T D I V TKM-TR

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