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Effect of scattering phase function on underwater visible light communication channel models

Title	Effect of scattering phase function on underwater visible light communication channel models
Author	Miramirkhani, F., Karbalayghareh, M., Uysal, Murat
Publication Date:	2021-10
Publication Place	- Elsevier
Subject	Underwater visible light communications (UVLC), Scattering phase function (SPF), Mie scattering, Channel modeling, Adaptive transmission
Type	Periodical
Language	English
Digital	Yes
Manuscript	No
Library:	Özyeğin University
Library Asset ID	1874-4907
Record ID	c74d6f9c-8009-4228-b1a9-0b669aba01a8
Library Location	Electrical & Electronics Engineering
Date	2021-10
Sample Text	Non-sequential ray tracing simulations are commonly employed to model underwater visible light communication (VLC) channels. The accuracy of such simulations highly depends on how well the optical properties of water (i.e., absorption and scattering) as well as scattering phase function (SPF) are modeled in the simulation. Existing empirical models are only a function of chlorophyll concentration and particle composition and are independent of refractive index, size and concentration of particles. In this paper, we carry out an underwater VLC channel modeling study using the Mie SPF which provides a full description of the scattering from phytoplankton particles which dominate the optical properties of most oceanic waters. We obtain the channel impulse response (CIR) based on an extensive non-sequential ray tracing study and calculate the fundamental channel parameters such as channel gain and delay spread. Comparison of CIRs reveals out that deployment of simplified SPF models results in the overestimation of path loss with respect to Mie SPF. Our results clearly demonstrate the importance of selecting realistic SPF models for an accurate underwater VLC channel modeling. While highlighting the channel models, we discuss adaptive modulation technique to maximize the data rate under the constraint of a targeted bit error rate. Besides, the maximum achievable distance is also determined both in terms of analytical guarantees and computer simulations. The results reveal that larger transmission distances can be achieved through Mie SPF channel model.
Cilt	48

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Özyeğin University

Effect of scattering phase function on underwater visible light communication channel models

Author Miramirkhani, F., Karbalayghareh, M., Uysal, Murat

Publication Date 2021-10

Publication Place - Elsevier

Subject Underwater visible light communications (UVLC), Scattering phase function (SPF), Mie scattering, Channel modeling, Adaptive transmission

Type Periodical

Language English

Digital Yes

Manuscript No

Library Özyeğin University

Library Asset ID 1874-4907

Record ID c74d6f9c-8009-4228-b1a9-0b669aba01a8

Library Location Electrical & Electronics Engineering

Date 2021-10

Sample Text Non-sequential ray tracing simulations are commonly employed to model underwater visible light communication (VLC) channels. The accuracy of such simulations highly depends on how well the optical properties of water (i.e., absorption and scattering) as well as scattering phase function (SPF) are modeled in the simulation. Existing empirical models are only a function of chlorophyll concentration and particle composition and are independent of refractive index, size and concentration of particles. In this paper, we carry out an underwater VLC channel modeling study using the Mie SPF which provides a full description of the scattering from phytoplankton particles which dominate the optical properties of most oceanic waters. We obtain the channel impulse response (CIR) based on an extensive non-sequential ray tracing study and calculate the fundamental channel parameters such as channel gain and delay spread. Comparison of CIRs reveals out that deployment of simplified SPF models results in the overestimation of path loss with respect to Mie SPF. Our results clearly demonstrate the importance of selecting realistic SPF models for an accurate underwater VLC channel modeling. While highlighting the channel models, we discuss adaptive modulation technique to maximize the data rate under the constraint of a targeted bit error rate. Besides, the maximum achievable distance is also determined both in terms of analytical guarantees and computer simulations. The results reveal that larger transmission distances can be achieved through Mie SPF channel model.

Cilt 48