Novel OBI noise reduction technique by using similar-OBI estimation in optical multiple access uplink

Hyoung Joon Park, Sun Young Jung, Sang Kook Han

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A novel optical beat interference (OBI) noise reduction technique for optical multiple access uplink using the same wavelength is presented. The OBI noise is estimated by similar-OBI and mitigated by subtracting estimated OBI noise using the digital signal processing technique. To derive similar-OBI, an RF clipping tone is transmitted out of signal band. We numerically and experimentally verified the validity of proposed OBI noise reduction method in orthogonal frequency division multiplexing access (OFDMA) passive optical network (PON) uplink where the OBI noise has been reduced and signal to noise ratio (SNR) has been improved from 4.4 dB to 10.6 dB.

Original languageEnglish
Pages (from-to)20860-20865
Number of pages6
JournalOptics Express
Volume25
Issue number17
DOIs
Publication statusPublished - 2017 Aug 21

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multiple access
noise reduction
synchronism
interference
frequency division multiplexing
signal processing
signal to noise ratios
wavelengths

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

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title = "Novel OBI noise reduction technique by using similar-OBI estimation in optical multiple access uplink",
abstract = "A novel optical beat interference (OBI) noise reduction technique for optical multiple access uplink using the same wavelength is presented. The OBI noise is estimated by similar-OBI and mitigated by subtracting estimated OBI noise using the digital signal processing technique. To derive similar-OBI, an RF clipping tone is transmitted out of signal band. We numerically and experimentally verified the validity of proposed OBI noise reduction method in orthogonal frequency division multiplexing access (OFDMA) passive optical network (PON) uplink where the OBI noise has been reduced and signal to noise ratio (SNR) has been improved from 4.4 dB to 10.6 dB.",
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Novel OBI noise reduction technique by using similar-OBI estimation in optical multiple access uplink. / Park, Hyoung Joon; Jung, Sun Young; Han, Sang Kook.

In: Optics Express, Vol. 25, No. 17, 21.08.2017, p. 20860-20865.

Research output: Contribution to journalArticle

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