BER analysis of a full-duplex relay-assisted BPSK-SIM based VLC system for indoor applications

L. Bhargava Kumar; Ramavath Prasad Naik; Datta Choudhari; Prabu Krishnan; G. D. Goutham Simha; V. K. Jagadeesh

doi:10.1364/AO.500213

Applied Optics
Vol. 62,
Issue 31,
pp. 8366-8373
(2023)
•https://doi.org/10.1364/AO.500213

BER analysis of a full-duplex relay-assisted BPSK-SIM based VLC system for indoor applications

L. Bhargava Kumar, Ramavath Prasad Naik, Datta Choudhari, Prabu Krishnan, G. D. Goutham Simha, and V. K. Jagadeesh

Not Accessible

Your library or personal account may give you access

Get PDF
Email
Share
Get Citation
Copy Citation Text
L. Bhargava Kumar, Ramavath Prasad Naik, Datta Choudhari, Prabu Krishnan, G. D. Goutham Simha, and V. K. Jagadeesh, "BER analysis of a full-duplex relay-assisted BPSK-SIM based VLC system for indoor applications," Appl. Opt. 62, 8366-8373 (2023)

Export Citation
- BibTex
- Endnote (RIS)
- HTML
- Plain Text
Citation alert
Save article
Editors' Pick

Check for updates

Related Topics
Table of Contents Category
- Fiber Optics, Fiber Sensors, and Optical Communications
Optics & Photonics Topics
?

The topics in this list come from the Optics and Photonics Topics applied to this article.

About this Article
History
- Original Manuscript: July 10, 2023
- Revised Manuscript: September 24, 2023
- Manuscript Accepted: October 5, 2023
- Published: October 25, 2023

Abstract

This paper contemplates a relay-assisted visible light communication (VLC) system, where the light source (table lamp) acts as a relay node and cooperates with the main light source. Following the IEEE 802.15.7r1 VLC reference channel model, we assume that there are two different light sources present in an office room. The first one is the source terminal present on the ceiling and another one is the desk lamp that serves as the relay station, which works in a full-duplex method. Because of the loop interference channel, we model the VLC relay terminal using ray tracing simulations. We have analyzed the bit error rate (BER) performance of the relay-assisted VLC system using a binary phase shift keying–subcarrier intensity modulation (BPSK-SIM) technique. The proposed method outperforms existing phase shift keying (PSK) and square M-quadrature amplitude modulation (M-QAM) techniques. The proposed VLC system using the BPSK-SIM technique achieves a BER performance of ${10^{- 12}}$ for an SNR of 20 dB. The results of the proposed full-duplex and half-duplex relayed VLC systems are evaluated using equal power allocation (EPA) and optimum power allocation (OPA) techniques over three different modulation schemes, which are 2-PSK, square M-QAM, and BPSK-SIM.

Full Article | PDF Article

More Like This

DCO-OTFS-based full-duplex relay-assisted visible light communications

Di Zheng, Hongming Zhang, and Jian Song
Opt. Express 29(25) 41323-41332 (2021)

Last mile access-based FSO and VLC systems

Atheer A. Sabri, Samir M. Hameed, and Wael A. H. Hadi
Appl. Opt. 62(31) 8402-8410 (2023)

Optical OFDM based on the fractional Fourier transform for an indoor VLC system

Mahdi Nassiri, Gholamreza Baghersalimi, and Zabih Ghassemlooy
Appl. Opt. 60(9) 2664-2671 (2021)

Previous Article Next Article

Data availability

No data were generated or analyzed in the presented research.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (29)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Luminary Specifications	Brand: LR24-38SKA35 Cree Inc.Half-Viewing Angle: 40°
Field of view and surface area of photodetector	85° and $1 {c m}^{2}$
Stipulations of surfaces and objects	Walls and ceiling: plaster floor and desk: pinewood desk light, shoes and laptop: black gloss paint hands and head: absorbing clothes: cotton
Transmit power	$- 30 d B m$
Area of room	$5 m \times 5 m \times 3 m$

Average Signal Power (P in dBm)	$K_{p}$	Average Signal Power (P in dBm)	$K_{p}$
0	0.8019	10	0.9306
1	0.8118	11	0.9306
2	0.8316	12	0.9405
3	0.8415	13	0.9504
4	0.8613	14	0.9504
5	0.8712	15	0.9603
6	0.8811	16	0.9702
7	0.8910	17	0.9702
8	0.9108	18	0.9702
9	0.9207	19	0.9801

Simulation Parameter	Value
Number of subcarriers ( $N$ )	256
Cyclic prefix length ( $N_{c p}$ )	32
Sampling interval ( $T_{s}$ )	250 ns
Photodetector responsivity (r)	0.28 A/W
Process delay ( $T_{p}$ )	50 ns
Pulse shaping filters ( $g_{T} (t)$ and $g_{R} (t)$ )	Square root raised cosine filter with roll-off factor 0.5
Noise power spectral density	$10^{- 20} W / H z$

Half-Duplex	BER	Full-Duplex	BER
Direct 4-QAM	$10^{- 1}$	Direct 4-QAM	$10^{- 1}$
Direct 2-PSK	$10^{- 2}$	Direct 2-PSK	$10^{- 2}$
Direct BPSK-SIM	$10^{- 2}$	Direct BPSK-SIM	$10^{- 2}$
4-QAM HD EPA	$2 \times 10^{- 3}$	4-QAM FD EPA	$10^{- 3}$
2-PSK HD EPA	$8 \times 10^{- 4}$	2-PSK FD EPA	$10^{- 3}$
BPSK-SIM HD EPA	$9 \times 10^{- 4}$	BPSK-SIM FD EPA	$10^{- 4}$
4-QAM HD OPA	$10^{- 3}$	4-QAM FD OPA	$10^{- 3}$
2-PSK HD OPA	$4 \times 10^{- 4}$	2-PSK FD OPA	$6 \times 10^{- 5}$
BPSK-SIM HD OPA	$2 \times 10^{- 4}$	BPSK-SIM FD OPA	$10^{- 8}$

Luminary Specifications	Brand: LR24-38SKA35 Cree Inc.Half-Viewing Angle: 40°
Field of view and surface area of photodetector	85° and $1 {c m}^{2}$
Stipulations of surfaces and objects	Walls and ceiling: plaster floor and desk: pinewood desk light, shoes and laptop: black gloss paint hands and head: absorbing clothes: cotton
Transmit power	$- 30 d B m$
Area of room	$5 m \times 5 m \times 3 m$

Ramavath Prasad Naik	https://orcid.org/0000-0002-9878-2295
Prabu Krishnan	https://orcid.org/0000-0001-9730-7997
G. D. Goutham Simha	https://orcid.org/0000-0002-3908-3566

Abstract

Data availability

Cited By

Figures (8)

Tables (4)

Equations (29)

Applied Optics