[sindhu kadirvelParticipant]

Thanks Dhiman and Rather!

For layout i will follow ur advice.How to save the time domain visualizer,optical domain visualizer results and eye diagram results in optisystem?Thanks for ur reply in advance.

[sindhu kadirvelParticipant]

Hi Dhiman,

Tks for ur kind reply.Yes for my research paper purpose only the reviewers asked for the clear layout..I dont know what to do thats the reason i asked this question.

[sindhu kadirvelParticipant]

Yes ravil,can we use guassian optical filter for nrz or rz input pulses?

[sindhu kadirvelParticipant]

Thanks Ravil for ur kind reply

[sindhu kadirvelParticipant]

Thanks for the reply.It was really useful Ravil and Alessandro Festa.
Ravil can u pls tell me the difference between rectangular optical filter and guassian optical filter too.It will be really helpful.Thanks in advance.

[sindhu kadirvelParticipant]

May i please know how to remove the file submitted by me .osd file in public forum and have privacy for the files submitted only to optiwave members.

[sindhu kadirvelParticipant]

Hi Damian,
50Hz is the powerline frequency of the fluorescent lamp used in indoor environment.
I need to model the channel as awgn channel.This ambient light noise will cause shot noise at the rx and i also need to include thermal noise.
Should i need to include white noise source in channel addition to LED and again in need to include photodiode diode parameters for shotnoise and thermal noise.If so how the optical filtering can be done here.How should i realise the channel here.
Please kindly help on this regards Damian.

[sindhu kadirvelParticipant]

Hi Damian,

I got few doubts again
1.i need to use white LED as input source ahould i use LED or white light source available in optisystem.
Coz they used phosphorescent LEDs for transmisssion in VLC
2.i need to add awgn noise from fluorescent lamp of frequency 50 Hz and 36W
so i have used white light source.in the file which u have sent u have changed the wavelength to 450 nm.
Please help me out with my doubts.

[sindhu kadirvelParticipant]

Hi damian please take a look of it

[sindhu kadirvelParticipant]

Hi Damian,

I modeled VLC system using white led of wavelength 450 nm and fso channel and added awgn noise.In the receiver side i used
gaussian filter optical filter to filter the noise.In OSA im not getting proper spectrum wn i tried to filter for 450 nm and 1 mhz bandwidth
data rate i have used is 20 kbps only.Where can i find the detailed description about optical filters and bandwidth?I dont knw where i am goin wrong?

[sindhu kadirvelParticipant]

Hi Damian,

Thanks.I tried modelling using FSO .i dont know why my optical power is incerasing after passing through FSO component.Can you please take a look at the file attached and tell me the suggestions where i am going wrong.Pls help me on this.

Thanks,
Sindhu.K

[sindhu kadirvelParticipant]

Thans a lot so much for ur reply damian.Its working now..I have an other doubt now.I want to model the channel for indoor visible light communication.Fso with parameters chosen distance can be used or owc chosen with frequency and distance can be used??i need air as the transmission medium…Which is more suitable?

[sindhu kadirvelParticipant]

Hi Damian,
U have already shared me a file on adding awgn noise.I cannot able to open that file facing problem.Can u please share me the screenshot.

[sindhu kadirvelParticipant]

Thanks Sushank and Damian will go through the same.

[sindhu kadirvelParticipant]

Hi Damian,

Thanks a lot for ur kind reply..can u pls send me a sample paper or example
using optisystem where they add awgn noise in optical wireless channel..It will be so much helpful for me..Thanks in advance.

Regards,
Sindhu