In-home networks integrating high-capacity DMT data and DVB-T over large-core GI-POF

Beltrán, Marta; Shi, Yan; Okonkwo, Chigo; Llorente, Roberto; Tangdiongga, E.; Koonen, Ton

doi:10.1364/oe.20.029769

Cited by 5 publications

(1 citation statement)

References 8 publications

(10 reference statements)

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“…Owing to the advantages of bend insensitivity, easy installation and robustness to the electromagnetic interference, the step-index polymer optical fiber (SI-POF) with a large core diameter becomes a popular transmission medium in short range communications, and can be used in a variety of applications [1][2][3][4][5]. Additionally, in the POF networking, the discrete multi-tone (DMT) modulation [6][7][8] with a bit-loading algorithm has been an efficient solution to maximize the system capacity [9].…”

Section: Introductionmentioning

confidence: 99%

RCLED Optimization and Nonlinearity Compensation in a Polymer Optical Fiber DMT System

Miao

Chen

et al. 2016

Applied Sciences

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Abstract:In polymer optical fiber (POF) systems, the nonlinear transfer function of the resonant cavity light emitting diode (RCLED) drastically degrades the communication performance. After investigating the characteristics of the RCLED nonlinear behavior, an improved digital look-up-table (LUT) pre-distorter, based on an adaptive iterative algorithm, is proposed. Additionally, the system parameters, including the bias current, the average electrical power, the LUT size and the step factor are also jointly optimized to achieve a trade-off between the system linearity, reliability and the computational complexity. With the proposed methodology, both the operating point and efficiency of RCLED are enhanced. Moreover, in the practical 50 m POF communication system with the discrete multi-tone (DMT) modulation, the bit error rate performance is improved by over 12 dB when RCLED is operating in the nonlinear region. Therefore, the proposed pre-distorter can both resist the nonlinearity and improve the operating point of RCLED.

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