Skip to main content
placeholder image

Iterative Nonlinearity Mitigation and Decoding for LED Communications

Journal Article


Abstract


  • The light-emitting diode (LED) is the major source of nonlinearity in LED communication systems, which needs to be carefully handled to avoid significant performance degradation. Post-distortion is an effective and convenient way to compensate the nonlinear distortion at the receiver side. In this work, we propose a soft-in-soft-out (SISO) post-distorter, which works with a SISO decoder iteratively by exchanging log-likelihood ratios (LLRs) of the coded bits at the receiver. It is demonstrated that the proposed iterative technique can achieve a remarkable performance gain compared to the conventional post-distortion technique in the literature.

Publication Date


  • 2018

Citation


  • W. Zhao, Q. Guo, Y. Yu, J. Xi & J. Tong, "Iterative Nonlinearity Mitigation and Decoding for LED Communications," IEEE Photonics Technology Letters, vol. 30, (19) pp. 1-4, 2018.

Scopus Eid


  • 2-s2.0-85052658113

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1751

Number Of Pages


  • 3

Start Page


  • 1

End Page


  • 4

Volume


  • 30

Issue


  • 19

Place Of Publication


  • United States

Abstract


  • The light-emitting diode (LED) is the major source of nonlinearity in LED communication systems, which needs to be carefully handled to avoid significant performance degradation. Post-distortion is an effective and convenient way to compensate the nonlinear distortion at the receiver side. In this work, we propose a soft-in-soft-out (SISO) post-distorter, which works with a SISO decoder iteratively by exchanging log-likelihood ratios (LLRs) of the coded bits at the receiver. It is demonstrated that the proposed iterative technique can achieve a remarkable performance gain compared to the conventional post-distortion technique in the literature.

Publication Date


  • 2018

Citation


  • W. Zhao, Q. Guo, Y. Yu, J. Xi & J. Tong, "Iterative Nonlinearity Mitigation and Decoding for LED Communications," IEEE Photonics Technology Letters, vol. 30, (19) pp. 1-4, 2018.

Scopus Eid


  • 2-s2.0-85052658113

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1751

Number Of Pages


  • 3

Start Page


  • 1

End Page


  • 4

Volume


  • 30

Issue


  • 19

Place Of Publication


  • United States