Distortion Mitigation in Multiband OFDM RoF Transmission Employing Blind Post Equalizer

Hyoung Joon Park; Sun Young Jung; Dong Woo Kwon; Seung Hyun Cho; Hwan Seok Chung; Jong Hyun Lee; Sang Kook Han

doi:10.1109/LPT.2016.2615313

Distortion Mitigation in Multiband OFDM RoF Transmission Employing Blind Post Equalizer

Hyoung Joon Park, Sun Young Jung, Dong Woo Kwon, Seung Hyun Cho, Hwan Seok Chung, Jong Hyun Lee, Sang Kook Han

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We propose and experimentally demonstrate a blind adaptive equalizer for a multiband (MB) orthogonal frequency-division multiplexing (OFDM) radio-over-fiber (RoF) system. The proposed equalizer adaptively decreases nonlinear and linear distortion, which might lead to serious signal degradation in MB OFDM transmission, without the use of a training signal. Instead of a training signal, error vector magnitude (EVM) and the power difference between the signal and the third-order intermodulation distortion components were observed in the equalizer. Therefore, the performance enhancement of MB OFDM transmission was experimentally verified in terms of EVM from 5.52% to 2.75% by mitigation of distortion. Consequently, the dynamic range of radio frequency input power was improved when the proposed equalizer was employed in an MB OFDM RoF system without increasing system overhead.

Original language	English
Pages (from-to)	2708-2711
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	28
Issue number	23
DOIs	https://doi.org/10.1109/LPT.2016.2615313
Publication status	Published - 2016 Dec 1

Bibliographical note

Publisher Copyright:
© 1989-2012 IEEE.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2016.2615313

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abstract = "We propose and experimentally demonstrate a blind adaptive equalizer for a multiband (MB) orthogonal frequency-division multiplexing (OFDM) radio-over-fiber (RoF) system. The proposed equalizer adaptively decreases nonlinear and linear distortion, which might lead to serious signal degradation in MB OFDM transmission, without the use of a training signal. Instead of a training signal, error vector magnitude (EVM) and the power difference between the signal and the third-order intermodulation distortion components were observed in the equalizer. Therefore, the performance enhancement of MB OFDM transmission was experimentally verified in terms of EVM from 5.52% to 2.75% by mitigation of distortion. Consequently, the dynamic range of radio frequency input power was improved when the proposed equalizer was employed in an MB OFDM RoF system without increasing system overhead.",

author = "Park, {Hyoung Joon} and Jung, {Sun Young} and Kwon, {Dong Woo} and Cho, {Seung Hyun} and Chung, {Hwan Seok} and Lee, {Jong Hyun} and Han, {Sang Kook}",

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AU - Park, Hyoung Joon

AU - Jung, Sun Young

AU - Kwon, Dong Woo

AU - Cho, Seung Hyun

AU - Chung, Hwan Seok

AU - Lee, Jong Hyun

AU - Han, Sang Kook

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AB - We propose and experimentally demonstrate a blind adaptive equalizer for a multiband (MB) orthogonal frequency-division multiplexing (OFDM) radio-over-fiber (RoF) system. The proposed equalizer adaptively decreases nonlinear and linear distortion, which might lead to serious signal degradation in MB OFDM transmission, without the use of a training signal. Instead of a training signal, error vector magnitude (EVM) and the power difference between the signal and the third-order intermodulation distortion components were observed in the equalizer. Therefore, the performance enhancement of MB OFDM transmission was experimentally verified in terms of EVM from 5.52% to 2.75% by mitigation of distortion. Consequently, the dynamic range of radio frequency input power was improved when the proposed equalizer was employed in an MB OFDM RoF system without increasing system overhead.

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Distortion Mitigation in Multiband OFDM RoF Transmission Employing Blind Post Equalizer

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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