Visible light communication is a high-speed developing technique with LEDs for both lighting and data communication. In this paper, examined the visible light communication performance over Mach Zehnder Modulation via Optisystem simulation tool. Quality factor and BER values of different link distance are predicted by optisystem simulation tool. The planned system can support 5 Gbps data rate up to 50 meter of link distance with a Quality factor of 15.71 for without any external noise interruption. In the case of external noise influence, the planned VLC system performance is also investigated through simulation tool. Consider the external noise interruption, the designed system can support 2Gbps data rate up to 20-meter link distance of Quality factor of 11.935. Quality factor for the system without any external noise influence is better compared to the system with external noise influence.

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Performance Analysis of Visible Light Communication (Vlc) with
and Without Consider the External Noise Using Mach Zehnder
(Mz) Modulator
S.Sherlin LeelaPrincy 1
, Dr.G.Karpagarajesh2
, R.WincyJenefer3
,
R.HelenVedanayagi Anita 4
, M.Martina5
1,3,4,5
PG student, Department of Electronics and Communication Engineering, Government
College of Engineering, Tirunelveli, Tamilnadu,India.
2
Assistant Professor, Department of Electronics and Communication Engineering, Government
College of Engineering, Tirunelveli, Tamilnadu,India.
Corresponding Email-Id: leenagifty07417@gmail.com
Abstract
Visible light communication is a high-speed developing technique with LEDs for both
lighting and data communication. In this paper, examined the visible light communication
performance over Mach Zehnder Modulation via Optisystem simulation tool. Quality factor and
BER values of different link distance are predicted by optisystem simulation tool. The planned
system can support 5 Gbps data rate up to 50 meter of link distance with a Quality factor of
15.71 for without any external noise interruption. In the case of external noise influence, the
planned VLC system performance is also investigated through simulation tool. Consider the
external noise interruption, the designed system can support 2Gbps data rate up to 20-meter link
distance of Quality factor of 11.935. Quality factor for the system without any external noise
influence is better compared to the system with external noise influence.
Index Terms-Free Space Optics(FSO), Mach Zehnder(MZ) Modulator, Visible Light
Communication(VLC), White Light Emitting Diode, Low Pass Filter(LPF)
Introduction
Over some previous years, a numerous of technical improvements has been demonstrated
in the radiance and information exchange area. In the spectrum frequency ranges from 400 to
800 THz is the operating ranges of visible light communication [1]. VLC operates under the
theory of communication of data through light waves to transmit and receive signal. Being a
complex field, it arouses questions on its significance, its operation, and areas in which it is well
suited for [2,3]. VLC acted as a guiding line for fiber optic communication that was invented in
the 80’s. Later in 1995, students of Universidad de Buenos Aires worked on the concept and thus
resulted in a laser diode that was used in photodiodes detection[4]. In 2003, three undergraduates
from Keio University, Japan, worked more on the concept using LED lighting [5].
Designed VLC System Setup
The designed VLC system without external noise consideration is as in Figure 1. The
electrical transmitter data of Mach Zehnder modulator was produced by Quasi random signal
sequence and the optical signal was produced with the support of white LED. The voltage level

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of an optical signal is controlled through Mach Zehnder modulator. Further, the modulated
output from Mach Zehnder modulator is passed into the receiver through the free space optics.
The received signal was analyzed by optical spectrum analyzer and optical power meter. Table 1
shows the LED and photodiode simulation factor.
Table 1 LED and PIN photodiode specification
LED SPECIFICATION
Centre frequency 550nm
LED color White
Extinction ratio 20db
Power 30mw
PIN PHOTODIODE SPECIFICATION
Responsivity type Silicon
Dark current 12nA
Shot noise distribution Gaussian
A VLC structure is planned through facilitate of Optisystem16. Table 2 displays that the
FSO constraint factor in the designed system. It describes the transmitter and receiver antenna
diameter is 7cm. The responsivity type of the PIN photodiode is silicon and considers the shot
noise distribution is Gaussian. 12nanoA is set for dark current of PIN photodiode in the designed
VLC system.
Table 2 FSO specification
FSO SPECIFICATION
Attenuation 8db/m
Additional loss 1db
Transmitter aperture diameter 7cm
Receiver aperture diameter 7cm
Range 10m to
100m
The loss of the signal was determined in the received signal and then once more
changed into electrical signal by means of photo detector. The PIN photo detector output was
examined by oscilloscope visualize to estimate the noise signal. To decrease the noise level in
the noticed electrical signal, it passes into the low pass filter. Then the low noise signal is passed
to the 3R regenerator to reproduce the original signal once more and examined the signal by eye
diagram and BER analyzer in the simulation tool.

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Figure 1 Experimental setup for VLC system without consider the external noise in simulation
software
Results and Discussion
For the deigned VLC system without consider the external noise having the white LED
operated at the frequency is 550nm. Examine the designed VLC system without consider the
external noise for different link distance from 10m to 60m at various data rate. At 10m the
maximum quality factor is 47.38 and it is transmitted up to 100m. From 1Gbps to 5Gbps the
transmitted signal is passed and above the 5Gbps the signal quality was decreased. Upto 50m the
quality factor of received signal from 1Gbps to 5Gbps are well and above 50m the signal
strength is decreased rapidly.
Table 3 shows the eye diagram description of designed VLC system without consider the
external noise of the received signal for the bit rate of 5Gbps at 5m. The table signifies that the
maximum quality factor, minimum bit error rate, eye height and threshold of eye diagram for the
planned VLC structure. The maximum quality factor at 5Gbps of 50m link distance for the
designed VLC system without consider the external noise is 15.71, minimum bit error rate is
6.43704e-056, maximum eye opening is 3.49774e-005 and the threshold of eye diagram is
2.319e-005.
Table 3 Performance of VLC System without Noise
Max. Q Factor 15.71
Min. BER 6.43704e-056
Eye Height 3.49774e-005
Threshold 2.319e-005
Figure 4 displays that the graph of minimum log of BER from the range of 10m to
100m. This graph implies the minimum BER up to 50m and above 50m the signal has maximum
BER so the signal strength is less. Figure 5 displays that the 3D graph of VLC system without
consider the external noise from the range of 10m to 100m at the bit rate from 1Gbps to 5Gbps.
3D graph represents the maximum quality factor at 10m link distance of 1Gbps for the designed

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VLC system without consider the external noise. The received signal strength is gradually
reduced upto the 100m of link distance.
Figure 4 BER graph of VLC System without
Noise
Figure 5 3Dgraph of VLC System without
Noise
For the deigned VLC system with consider the external noise having the white
LED operated at the frequency is 550nm and the noise frequency is 600nm. Examine the
designed VLC system with consider the external noise for different link distance from 10m to
60m at various data rate. At 10m the maximum quality factor is 48.38 and it is transmitted up to
100m. From 1Gbps to 2Gbps the transmitted signal is passed and above the 2Gbps the signal
quality was decreased. Upto 50m the quality factor of received signal from 1Gbps to 2Gbps are
well and above 50m the signal strength is decreased rapidly.
Figure 6 shows that the evaluation of our results with the previous year work. In 2009,
Joon-Ho Choi et.al [6] using the NRZ OOK modulation to communicate the extreme link
distance of 1cm at extreme data rate of 1Mb/s. In 2010, Le-Minh H et.al., [7] by means of a post
equalized white LED to communicate the supreme link distance of 1cm at determined data rate
of 100Mb/s. Since 2011, Fujimoto N et.al., [8] visible light broadcast based on OOK-NRZ
variation using a only commercially offered visible LED and a everyday LED driver with a pre-
emphasis circuit to communicate the extreme link distance of 4cm at extreme data rate of
477Mb/s. In 2014, Li Honglei et.al., [9] visible light communication structure founded on
phosphorescent white light LED for applied high-speed low-complexity application to
communicate the extreme link distance of 16cm at extreme data rate of 500Mb/s. In the year
2017, Selvendran S et.al., [10] using the OOK modulation to transmit the extreme link distance
of 3m at determined data rate of 2Gb/s. Our designed VLC system can support 50m at 5Gb/s
using MZ modulation.

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Figure 6 Comparison graph for the maximum data rate
Conclusion
We have planned an analysis of visible light communication with and without
consider the external noise through Mach Zehnder modulator in optisys software. The proposed
VLC system without consider the external noise supports up to the range of link distance 50m at
5Gb/s and above 50m distance the signal strength is decreased rapidly. The VLC system with
consider the external noise supports up to the range of link distance 50m at 2Gb/s and above 50m
distance the signal strength is decreased. At 2Gb/s the VLC system with consider the external
noise also support only up to 10m. The performance of VLC system without consider the
external noise is better compared to the VLC system with consider the external noise. The
proposed method and the study can improve future Visible light communication performance
metrics, and provide higher data rates and wider bandwidths to the end user. We suggest OFDM
modulation to improve data rate to further study.
References
1. Badar, N. and Jha, R.K., 2017. Performance comparison of various modulation schemes over free space
optical (FSO) link employing Gamma–Gamma fading model. Optical and Quantum Electronics, 49(5), p.192.
2. Chang, C.C., Su, Y.J., Kurokawa, U. and Choi, B.I., 2011. Interference rejection using filter-based sensor
array in VLC systems. IEEE sensors journal, 12(5), pp.1025-1032.
3. P. Venkateswari, E. JebithaSteffy, Dr. N. Muthukumaran, 'License Plate cognizance by Ocular Character
Perception', International Research Journal of Engineering and Technology, Vol. 5, No. 2, pp. 536-542, February
2018.
4. N. Muthukumaran, Mrs R.Sonya, Dr. Rajashekhara and V. Chitra, 'Computation of Optimum ATC Using
Generator Participation Factor in Deregulated System', International Journal of Advanced Research Trends in
Engineering and Technology, Vol. 4, No. 1, pp. 8-11, January 2017.
0.001 0.1
0.4477 0.5
2
5
0
1
2
3
4
5
6
0 1 2 3 4 5 6 7
DATARATES(Gb/s)
1-NRZ MODULATION, 2-POST EQUALIZED WHITE LED,
3-NRZ MODULLATION WITH PRE-EMPHASISCIRCUIT,
4-PHOSPHERENTWHITE LED, 5-OOK MODULATION, 6-MZ MODULATION
COMPARISON GRAPH FOT THE MAXIMUM DATA RATES
WITH PREVIOUS WORK

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5. Anil Lamba, "Uses Of Cluster Computing Techniques To Perform Big Data Analytics For Smart Grid
Automation System", International Journal for Technological Research in Engineering, Volume 1 Issue 7, pp.5804-
5808, 2014.
6. Anil Lamba, “Uses Of Different Cyber Security Service To Prevent Attack On Smart Home Infrastructure",
International Journal for Technological Research in Engineering, Volume 1, Issue 11, pp.5809-5813, 2014.
7. Anil Lamba, "A Role Of Data Mining Analysis To Identify Suspicious Activity Alert System”, International
Journal for Technological Research in Engineering, Volume 2 Issue 3, pp.5814-5825, 2014.
8. Anil Lamba, "To Classify Cyber-Security Threats In Automotive Doming Using Different Assessment
Methodologies”, International Journal for Technological Research in Engineering, Volume 3, Issue 3, pp.5831-
5836, 2015.
9. Anil Lamba, “A Study Paper On Security Related Issue Before Adopting Cloud Computing Service Model”,
International Journal for Technological Research in Engineering, Volume 3, Issue 4, pp.5837-5840, 2015.
10. B. Renuka, B. Sivaranjani, A. Maha Lakshmi,Dr. N. Muthukumaran, 'Automatic Enemy Detecting Defense
Robot by using Face Detection Technique', Asian Journal of Applied Science and Technology, Vol. 2, No. 2, pp.
495-501, April 2018.
11. N. Muthukumaran, 'Analyzing Throughput of MANET with Reduced Packet Loss', Wireless Personal
Communications, Vol. 97, No. 1, pp. 565-578, November 2017.
12. R. Sudhashree, N. Muthukumaran, 'Analysis of Low Complexity Memory Footprint Reduction for Delay
and Area Efficient Realization of 2D FIR Filters', International Journal of Applied Engineering Research, Vol. 10,
No. 20, pp. 16101-16105, 2015.
13. Boselin Prabhu S. R. and Balakumar N., “Functionalities and Recent Real World Applications of
Biosensors”, International Journal of Computer Science & Communication Networks, Vol 6 Issue 5, pp. 211-216.
14. Boselin Prabhu S. R. and Balakumar N., “A Research on Efficient Processor Design Structure with
Reduced Memory Gap”, International Journal of Research in Electronics and Computer Engineering, Vol. 4, Issue
4, Oct-Dec 2016, pp. 158-164.
15. Boselin Prabhu S.R., Rajeswari P. and Dinesh Kumar A., “An Analytical Review of Fiber-Optic Sensors
and Biosensors, Journal of Engineering, Scientific Research and Applications, Volume 2, Issue 1, 2016, pp. 58-61.
16. Boselin Prabhu S.R., Balakumar N., Rajeswari P. and Dinesh Kumar A., “Wireless Electricity Transfer
Methodologies Using Embedded System Technology”, Journal of Engineering, Scientific Research and
Applications, Volume 2, Issue 1, 2016, pp. 81-89.
17. Boselin Prabhu S.R., Rajeswari P. and Dinesh Kumar A., “Analysis of Decentralized Clustering Hierarchy
for Highly Distributed WSN”, Journal of Engineering, Scientific Research and Applications, Volume 2, Issue 1,
2016, pp. 45-49.
18. Boselin Prabhu S. R., “Reliable Security Approach for Wireless Embedded Systems”, International Journal
of Emerging Technology and Innovative Engineering, Vol. 2, Issue 11, November 2016, pp. 402-406.
19. Boselin Prabhu S. R., “An Elaborative Literature of Hierarchical Clustering Methodologies for Dense
WSNs”, SK International Journal of Multidisciplinary Research Hub, Volume 3, Issue 11, November 2016, pp. 15-
19.
20. F.M.AiyshaFarzana, HameedhulArshadh. A, Ganesan. J, Dr. N. Muthukumaran, 'High Performance VLSI
Architecture for Advanced QPSK Modems', Asian Journal of Applied Science and Technology, Vol. 3, No. 1, pp. 45-
49, January 2019.
21. A.Srinithi, E.Sumathi, K.Sushmithawathi, M.Vaishnavi, Dr. N. Muthukumaran, 'An Embedded Based
Integrated Flood Forecasting through HAM Communication', Asian Journal of Applied Science and Technology,
Vol. 3, No. 1, pp. 63-67, January 2019.
22. N. Muthukumaran and R. Ravi, 'Hardware Implementation of Architecture Techniques for Fast Efficient
loss less Image Compression System', Wireless Personal Communications, Volume. 90, No. 3, pp. 1291-1315,
October 2016.
23. Anil Lamba, "Uses Of Artificial Intelligent Techniques To Build Accurate Models For Intrusion Detection
System”, International Journal for Technological Research in Engineering, Volume 2, Issue 12, pp.5826-5830,
2015.

7. Our Heritage
ISSN: 0474-9030
Vol-68-Issue-1-January-2020
P a g e | 8919 Copyright ⓒ 2019Authors
24. Anil Lamba, "Mitigating Zero-Day Attacks In IOT Using A Strategic Framework", International Journal
for Technological Research in Engineering, Volume 4, Issue 1, pp.5711-5714, 2016.
25. Anil Lamba, "Identifying & Mitigating Cyber Security Threats In Vehicular Technologies", International
Journal for Technological Research in Engineering, Volume 3, Issue 7, pp.5703-5706, 2016.
26. Anil Lamba, "S4: A Novel & Secure Method For Enforcing Privacy In Cloud Data Warehouses",
International Journal for Technological Research in Engineering, Volume 3, Issue 8, pp.5707-5710, 2016.
27. Anil Lamba, “Analysing Sanitization Technique of Reverse Proxy Framework for Enhancing Database-
Security”, International Journal of Information and Computing Science, Volume 1, Issue 1, pp.30-44, 2014.
28. F.M. AiyshaFarzana, HameedhulArshadh. A, Sara Safreen. M, Dr. N. Muthukumaran, 'Design and
Analysis for Removing Salt and Pepper Noise in Image Processing', Indo-Iranian Journal of Scientific Research,
Vol. 3, No. 1, pp. 42-47, January 2019.
29. J. Keziah, N. Muthukumaran, 'Design of K Band Transmitting Antenna for Harbor Surveillance Radar
Application', International Journal on Applications in Electrical and Electronics Engineering, Vol. 2, No. 5, pp. 16-
20, May 2016.
30. Dr. N. Muthukumaran, Dr. R. Joshua Samuel Raj, Arumugathammal. E, Karthika. N, Karthika. S,
Sangeetha. M, 'Design of Underground Mine Detecting Robot using Sensor Network', International Journal of
Emerging Technology and Innovative Engineering, Volume 5, Issue 7, pp. 519-524, July 2019.
31. VP. Anubala, N. Muthukumaran and R. Nikitha, „Performance Analysis of Hookworm Detection using
Deep Convolutional Neural Network‟, 2018 International Conference on Smart Systems and Inventive Technology
(ICSSIT), pp. 348-354, 2018, doi: 10.1109/ICSSIT.2018.8748645.
32. N. Muthukumaran and R. Ravi, 'The Performance Analysis of Fast Efficient Lossless Satellite Image
Compression and Decompression for Wavelet Based Algorithm', Wireless Personal Communications, Volume. 81,
No. 2, pp. 839-859, March 2015.
33. Jayaraman.G, Dr. N. Muthukumaran,Vanaja.A, Santhamariammal.R, 'Design and Analysis the Fire
Fighting Robot', International Journal of Emerging Technology and Innovative Engineering, Volume 5, Issue 9, pp.
690-695, September 2019.
34. R. Joshua Samuel Raj, T.Sudarson Rama Perumal, N.Muthukumaran, „Road Accident Data Analytics
Using Map – Reduce Concept‟, International Journal of Innovative Technology and Exploring Engineering,
Volume-8, Issue-11, pp. 1032- 1037, September 2019.
35. Banumathi.A, Banupriya.A, Niranjana.R, Jayaraman.G, Dr. N. Muthukumaran, 'Advanced Illumination
Measurement System in Highways', Asian Journal of Applied Science and Technology, Vol. 3, No. 1, pp. 39-44,
January 2019.
36. Mrs. S. Murine Sharmili, Dr. N. Muthukumaran, 'Performance Analysis of Elevation & Building Contours
Image using K-Mean Clustering with Mathematical Morphology and SVM', Asian Journal of Applied Science and
Technology, Vol. 2, No. 2, pp. 80-85, April 2018.
37. Manivannan, K., Raja, A.S. and Selvendran, S., Performance Investigation of Visible Light Communication
System Using Optisystem Simulation Tool.