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IEEE Communications Letters
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IEEE Communications Letters
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An Improved FD-DFE Structure for Downlink VLC Systems Based on SC-FDMA

Authors: Zhi Li; Chao Zhang;

An Improved FD-DFE Structure for Downlink VLC Systems Based on SC-FDMA

Abstract

Visible light communication (VLC) technology is considered to be an attractive solution for future wireless indoor multimedia communication. To reduce the peak-to-average power ratio, single-carrier frequency division multiple access (SC-FDMA) with time domain asymmetrical clipping is applied for the downlink multi-user VLC system. An improved frequency-domain decision feedback equalizer (FD-DFE) structure is proposed for the SC-FDMA -based VLC system in this letter. Different kinds of subcarrier distributions are considered in the analyses and simulations. Thanks to the clipping noise information on the even subcarriers, which can reduce the decision error, the proposed algorithm provides a lower bit error rate and better transmission performance compared with traditional schemes.

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Subjects by Vocabulary

Microsoft Academic Graph classification: Frequency-division multiple access Computer science business.industry Clipping (signal processing) Visible light communication Equalizer Subcarrier Telecommunications link Electronic engineering Bit error rate Wireless Time domain business

Keywords

Computer Science Applications, Modeling and Simulation, Electrical and Electronic Engineering

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
views
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