Vertical underwater VLC links over cascaded gamma-gamma turbulence channels with pointing errors

Name: Vertical underwater VLC links over cascaded gamma-gamma turbulence channels with pointing errors
Author: Elamassie, Mohammed, Uysal, Murat

İsim	Vertical underwater VLC links over cascaded gamma-gamma turbulence channels with pointing errors
Yazar	Elamassie, Mohammed, Uysal, Murat
Basım Tarihi:	2019
Basım Yeri	- IEEE
Konu	Underwater visible light communication, Underwater optical turbulence, Pointing errors
Tür	Belge
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	978-1-7281-3234-1
Kayıt Numarası	d91497a1-ee84-4a3a-ac98-3eaa91efa7ed
Lokasyon	Electrical & Electronics Engineering
Tarih	2019
Notlar	TÜBİTAK
Örnek Metin	Underwater visible light communication (UVLC) is a high capacity wireless connectivity solution with low latency, particularly appealing for real-time underwater video and image transmission. While attenuation and geometrical losses determine the average light intensity, underwater optical turbulence introduces fluctuations on the average received intensity, also known as fading. Due to relative movements of source and/or detector in harsh underwater environment, pointing errors further cause additional fading. In this paper, we consider a vertical underwater link modeled as a multi-layer channel where the fading coefficients associated with each layer are modeled as independent but not identically distributed Gamma-Gamma random variables. We model the displacements along the horizontal and elevation axes as independent and identically distributed Gaussian variables. Under these assumptions, we derive a closed-form expression for bit error rate (BER) expression. Based on asymptotical BER analysis, we determine the diversity order as a function of system and channel parameters. We further present Monte-Carlo simulation results to confirm the derived expressions.
DOI	10.1109/BlackSeaCom.2019.8812811

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Vertical underwater VLC links over cascaded gamma-gamma turbulence channels with pointing errors

Yazar Elamassie, Mohammed, Uysal, Murat

Basım Tarihi 2019

Basım Yeri - IEEE

Konu Underwater visible light communication, Underwater optical turbulence, Pointing errors

Tür Belge

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 978-1-7281-3234-1

Kayıt Numarası d91497a1-ee84-4a3a-ac98-3eaa91efa7ed

Lokasyon Electrical & Electronics Engineering

Tarih 2019

Notlar TÜBİTAK

Örnek Metin Underwater visible light communication (UVLC) is a high capacity wireless connectivity solution with low latency, particularly appealing for real-time underwater video and image transmission. While attenuation and geometrical losses determine the average light intensity, underwater optical turbulence introduces fluctuations on the average received intensity, also known as fading. Due to relative movements of source and/or detector in harsh underwater environment, pointing errors further cause additional fading. In this paper, we consider a vertical underwater link modeled as a multi-layer channel where the fading coefficients associated with each layer are modeled as independent but not identically distributed Gamma-Gamma random variables. We model the displacements along the horizontal and elevation axes as independent and identically distributed Gaussian variables. Under these assumptions, we derive a closed-form expression for bit error rate (BER) expression. Based on asymptotical BER analysis, we determine the diversity order as a function of system and channel parameters. We further present Monte-Carlo simulation results to confirm the derived expressions.

DOI 10.1109/BlackSeaCom.2019.8812811