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Orthogonal polynomial-based nonlinearity modeling and mitigation for LED communications

Journal Article


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Abstract


  • The light-emitting diode (LED) is the major source of nonlinearity in LED communications,

    and the nonlinearity needs to be effectively modeled and thereby mitigated

    through predistortion or postdistortion to avoid degradation of communication performance.

    A memory polynomial is often used for LED nonlinearity modeling and mitigation in the literature.

    However, the estimation of memory polynomial coefficients suffers from numerical instability,

    resulting in inaccurate modeling and poor performance in nonlinearity mitigation. In

    this paper, we propose an orthogonal polynomial-based nonlinearity modeling and mitigation

    technique for LED communications with pulse amplitude modulation (PAM) signaling

    and show that the proposed technique significantly outperforms the conventional memory

    polynomial-based techniques.

Publication Date


  • 2016

Citation


  • W. Zhao, Q. Guo, J. Tong, J. Xi, Y. Yu, P. Niu & X. Sun, "Orthogonal polynomial-based nonlinearity modeling and mitigation for LED communications," IEEE Photonics Journal, vol. 8, (4) pp. 7905312-1-7905312-13, 2016.

Scopus Eid


  • 2-s2.0-84979270643

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6807&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5779

Start Page


  • 7905312-1

End Page


  • 7905312-13

Volume


  • 8

Issue


  • 4

Place Of Publication


  • United States

Abstract


  • The light-emitting diode (LED) is the major source of nonlinearity in LED communications,

    and the nonlinearity needs to be effectively modeled and thereby mitigated

    through predistortion or postdistortion to avoid degradation of communication performance.

    A memory polynomial is often used for LED nonlinearity modeling and mitigation in the literature.

    However, the estimation of memory polynomial coefficients suffers from numerical instability,

    resulting in inaccurate modeling and poor performance in nonlinearity mitigation. In

    this paper, we propose an orthogonal polynomial-based nonlinearity modeling and mitigation

    technique for LED communications with pulse amplitude modulation (PAM) signaling

    and show that the proposed technique significantly outperforms the conventional memory

    polynomial-based techniques.

Publication Date


  • 2016

Citation


  • W. Zhao, Q. Guo, J. Tong, J. Xi, Y. Yu, P. Niu & X. Sun, "Orthogonal polynomial-based nonlinearity modeling and mitigation for LED communications," IEEE Photonics Journal, vol. 8, (4) pp. 7905312-1-7905312-13, 2016.

Scopus Eid


  • 2-s2.0-84979270643

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=6807&context=eispapers

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/5779

Start Page


  • 7905312-1

End Page


  • 7905312-13

Volume


  • 8

Issue


  • 4

Place Of Publication


  • United States