Magnitude and wrap-phase OFDM for MIMO visible light communication systems

Name: Magnitude and wrap-phase OFDM for MIMO visible light communication systems
Author: Al-Nahhal, Mohamed, Başar, E., Uysal, Murat

İsim	Magnitude and wrap-phase OFDM for MIMO visible light communication systems
Yazar	Al-Nahhal, Mohamed, Başar, E., Uysal, Murat
Basım Tarihi:	2021-07
Basım Yeri	- IEEE
Konu	Decoding complexity, Maximum likelihood estimator, Multiple-input multiple-output, Orthogonal frequency division multiplexing, Visible light communications
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	1089-7798
Kayıt Numarası	1a4dd84c-c5a2-4c3f-b192-e7498b62f87d
Lokasyon	Electrical & Electronics Engineering
Tarih	2021-07
Örnek Metin	Generalized light emitting diode (LED) index modulation (GLIM) has been proposed as an effective multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) scheme for visible light communications (VLC) systems. In this letter, we propose a magnitude and wrap-phase OFDM (MW-OFDM) scheme for MIMO VLC systems. The proposed MW-OFDM system relies on the conversion of complex signals into polar form with the magnitudes and wrap-phases to decrease the restriction on the number of LEDs compared to the conventional GLIM-OFDM. Furthermore, maximum likelihood and best linear unbiased estimators of the proposed scheme are derived. The proposed MW-OFDM scheme improves the average bit error rate and provides a significant reduction in the decoding complexity, compared to the GLIM-OFDM. Moreover, a half number of LEDs are required for the proposed scheme to deliver the same spectral efficiency in a comparison with the GLIM-OFDM. Numerical results are presented over MIMO VLC channels to elaborate the superiority of our proposed scheme.
DOI	10.1109/LCOMM.2021.3070272
Cilt	25

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Magnitude and wrap-phase OFDM for MIMO visible light communication systems

Yazar Al-Nahhal, Mohamed, Başar, E., Uysal, Murat

Basım Tarihi 2021-07

Basım Yeri - IEEE

Konu Decoding complexity, Maximum likelihood estimator, Multiple-input multiple-output, Orthogonal frequency division multiplexing, Visible light communications

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 1089-7798

Kayıt Numarası 1a4dd84c-c5a2-4c3f-b192-e7498b62f87d

Lokasyon Electrical & Electronics Engineering

Tarih 2021-07

Örnek Metin Generalized light emitting diode (LED) index modulation (GLIM) has been proposed as an effective multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) scheme for visible light communications (VLC) systems. In this letter, we propose a magnitude and wrap-phase OFDM (MW-OFDM) scheme for MIMO VLC systems. The proposed MW-OFDM system relies on the conversion of complex signals into polar form with the magnitudes and wrap-phases to decrease the restriction on the number of LEDs compared to the conventional GLIM-OFDM. Furthermore, maximum likelihood and best linear unbiased estimators of the proposed scheme are derived. The proposed MW-OFDM scheme improves the average bit error rate and provides a significant reduction in the decoding complexity, compared to the GLIM-OFDM. Moreover, a half number of LEDs are required for the proposed scheme to deliver the same spectral efficiency in a comparison with the GLIM-OFDM. Numerical results are presented over MIMO VLC channels to elaborate the superiority of our proposed scheme.

DOI 10.1109/LCOMM.2021.3070272

Cilt 25