[Eng. YanParticipant]

thank you Alistu for the useful info. that is the basic expressions for the transimpedance amplifier. in fact, i am looking for the thermal noise expression.

thank you again

[Eng. YanParticipant]

Hi Arpita Gupta,

in order to represent the optical code for each user. you can use even just one optical source. since one source is applicable to support up to 20 wavelengths. in that, you can use WDM Demus to slice the broadband spectrum. As mentioned above, FBG can be used to represent each code length.

Regards

[Eng. YanParticipant]

Thank you Mr. Gokul Boro for the fast response.
Yes, i am using the block from OptiSystem but unfortunately there is no mathematical expression and technical background.
do you have any idea to represent that ?

[Eng. YanParticipant]

thank you alistu

[Eng. YanParticipant]

how can we improve the channel loss in the free space channel?

[Eng. YanParticipant]

Thank you Alistu for the response.

what i am try to do is to represent the signal that reflected from the opaque objects or walls in the indoor environment. in which the reflection coefficient is about 80% of the transmitted signal.