- This topic has 17 replies, 5 voices, and was last updated 8 years, 5 months ago by
Abhishek Shrama.
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AuthorPosts
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March 3, 2015 at 10:45 am #18166
sobana a
ParticipantHai…
I need to know whether my simulation setup is correct …..I’m providing equal power to wire and wireless service simultaneously also using FBG for both the service……For wired service i have used OFDM demodulator but for wireless service i just used PIN,and LPF…..I got min BER and eye diagram for wired service….but not able to get for the wireless service….plz check my simulation setup which i have attached with this below…..Attachments:
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March 3, 2015 at 12:37 pm #18188
alistu
ParticipantWhich version of Optisystem are you using? there have been some problems with OFDM blocks in the versions older than 13 I guess.
have a look:+1 -
March 3, 2015 at 10:59 pm #18220
Dr Rk Sethi
ParticipantUnfortunately, I can’t open your file with my version of OptiSystem. Can you please attach / upload a screen shot of the project?
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March 3, 2015 at 11:20 pm #18222
sobana a
Participant -
March 3, 2015 at 11:28 pm #18224
sobana a
Participantscreen shots for transmitter, wire and wireless side
Attachments:
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March 4, 2015 at 12:10 pm #18262
sobana a
Participanti need only to access the wireless part..the blocks which i have included whether it is correct for wireless or need to change….
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March 4, 2015 at 12:48 pm #18269
alistu
ParticipantWhy don’t you use the Matlab component to make OFDM blocks? That way, at least you are sure the problem is not due to OFDM blocks.
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March 5, 2015 at 9:44 am #18332
sobana a
Participanti dont know where i have to insert the OSNR component in optiwave v 13….whether after fiber or befor fiber?
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March 5, 2015 at 11:11 am #18341
alistu
ParticipantThat depends.
Do you want to measure OSNR before or after the the line? Put it there. -
March 13, 2015 at 2:34 am #18609
sobana a
ParticipantThanks………….For wireless accesss i have been using Optical heterodyne….my demodulator is ofdm demodulator…..but i can,t get the BER and eye diagram…here i have attached my wireless section at receiver side.
Attachments:
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March 13, 2015 at 9:28 am #18629
Damian Marek
ParticipantHi Sobana,
I’ve mentioned this to other users here, but I see that you are using the OS 12 OFDM components, which we kept in OptiSystem 13 for our users. The new OFDM components are highly recommended as they make using them much easier.
As a side note, if you click the OS 12 OFDM Demodulator and then press CTRL+F the component will be oriented in the right direction.
Regards
+1
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March 14, 2015 at 12:28 am #18648
sobana a
Participanti’m using optiwave 13…
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March 16, 2015 at 1:33 pm #18772
sobana a
Participantwhether min BER can be ‘0’???
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March 16, 2015 at 1:41 pm #18773
Dr Rk Sethi
ParticipantHi Sobana a!
BER is the ratio of “the number of bits in error” divided by “the total number of bits”.
therefore its minimum value of the BER can be zero and maximum value can be one. -
March 17, 2015 at 2:56 am #18798
sobana a
ParticipantWhether power should be within -10 to +10 dBm?
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April 16, 2015 at 10:47 pm #19844
sobana a
Participantin optiwave 13 whether multiple graphs can be drawn…like comparison between RZ and NRZ , OFDM with and without FBG…..
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April 17, 2015 at 12:22 am #19847
Abhishek Shrama
Participantyou can take any value of power but as you increase power non-linear effects come into play.it also increase the calculation time
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