DCT-OFDM Tabanli Görünür Işik Haberleşmesi

Ömer Narmanlioǧlu; Murat Uysal

doi:10.1109/SIU.2016.7495792

DCT-OFDM Tabanli Görünür Işik Haberleşmesi

Translated title of the contribution: DCT-OFDM based visible light communications

Ömer Narmanlioǧlu, Murat Uysal

Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Visible light communication (VLC) is a short-range wireless transmission technique in which light emitting diodes (LEDs) are used as data transmitters. Because of non-coherent characteristics of LEDs, only intensity can be used in transmission, therefore, the signal driven to LEDs should be real valued and non-negative. The output of inverse discrete Fourier transform (IDFT) process in conventional orthogonal frequency division multiplexing (OFDM) is complex-valued. In VLC systems, to make the output of IDFT block real valued, Hermitian symmetry is applied at the input. This reduces spectral efficiency to half. In this paper, to prevent the decrease in spectral efficiency of VLC systems, discrete cosine transform (DCT)-based OFDM structure with real valued outputs is proposed. The error rate performance of the proposed system is compared with DFTbased OFDM system over indoor realistic VLC channel models.

Translated title of the contribution	DCT-OFDM based visible light communications
Original language	Undefined
Title of host publication	2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	521-524
Number of pages	4
ISBN (Electronic)	9781509016792
DOIs	https://doi.org/10.1109/SIU.2016.7495792
State	Published - Jun 20 2016
Event	24th Signal Processing and Communication Application Conference, SIU 2016 - Zonguldak, Turkey Duration: May 16 2016 → May 19 2016

Publication series

Name	2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings

Conference

Conference	24th Signal Processing and Communication Application Conference, SIU 2016
Country/Territory	Turkey
City	Zonguldak
Period	5/16/16 → 5/19/16

Keywords

DCT
OFDM
visible light communication

ASJC Scopus subject areas

Signal Processing
Computer Networks and Communications
Computer Science Applications

Access to Document

10.1109/SIU.2016.7495792

Cite this

Narmanlioǧlu, Ö., & Uysal, M. (2016). DCT-OFDM Tabanli Görünür Işik Haberleşmesi. In 2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings (pp. 521-524). Article 7495792 (2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/SIU.2016.7495792

DCT-OFDM Tabanli Görünür Işik Haberleşmesi. / Narmanlioǧlu, Ömer; Uysal, Murat.
2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2016. p. 521-524 7495792 (2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Narmanlioǧlu, Ö & Uysal, M 2016, DCT-OFDM Tabanli Görünür Işik Haberleşmesi. in 2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings., 7495792, 2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings, Institute of Electrical and Electronics Engineers Inc., pp. 521-524, 24th Signal Processing and Communication Application Conference, SIU 2016, Zonguldak, Turkey, 5/16/16. https://doi.org/10.1109/SIU.2016.7495792

Narmanlioǧlu Ö, Uysal M. DCT-OFDM Tabanli Görünür Işik Haberleşmesi. In 2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2016. p. 521-524. 7495792. (2016 24th Signal Processing and Communication Application Conference, SIU 2016 - Proceedings). doi: 10.1109/SIU.2016.7495792

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abstract = "Visible light communication (VLC) is a short-range wireless transmission technique in which light emitting diodes (LEDs) are used as data transmitters. Because of non-coherent characteristics of LEDs, only intensity can be used in transmission, therefore, the signal driven to LEDs should be real valued and non-negative. The output of inverse discrete Fourier transform (IDFT) process in conventional orthogonal frequency division multiplexing (OFDM) is complex-valued. In VLC systems, to make the output of IDFT block real valued, Hermitian symmetry is applied at the input. This reduces spectral efficiency to half. In this paper, to prevent the decrease in spectral efficiency of VLC systems, discrete cosine transform (DCT)-based OFDM structure with real valued outputs is proposed. The error rate performance of the proposed system is compared with DFTbased OFDM system over indoor realistic VLC channel models.",

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N2 - Visible light communication (VLC) is a short-range wireless transmission technique in which light emitting diodes (LEDs) are used as data transmitters. Because of non-coherent characteristics of LEDs, only intensity can be used in transmission, therefore, the signal driven to LEDs should be real valued and non-negative. The output of inverse discrete Fourier transform (IDFT) process in conventional orthogonal frequency division multiplexing (OFDM) is complex-valued. In VLC systems, to make the output of IDFT block real valued, Hermitian symmetry is applied at the input. This reduces spectral efficiency to half. In this paper, to prevent the decrease in spectral efficiency of VLC systems, discrete cosine transform (DCT)-based OFDM structure with real valued outputs is proposed. The error rate performance of the proposed system is compared with DFTbased OFDM system over indoor realistic VLC channel models.

AB - Visible light communication (VLC) is a short-range wireless transmission technique in which light emitting diodes (LEDs) are used as data transmitters. Because of non-coherent characteristics of LEDs, only intensity can be used in transmission, therefore, the signal driven to LEDs should be real valued and non-negative. The output of inverse discrete Fourier transform (IDFT) process in conventional orthogonal frequency division multiplexing (OFDM) is complex-valued. In VLC systems, to make the output of IDFT block real valued, Hermitian symmetry is applied at the input. This reduces spectral efficiency to half. In this paper, to prevent the decrease in spectral efficiency of VLC systems, discrete cosine transform (DCT)-based OFDM structure with real valued outputs is proposed. The error rate performance of the proposed system is compared with DFTbased OFDM system over indoor realistic VLC channel models.

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DCT-OFDM Tabanli Görünür Işik Haberleşmesi

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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