[HagerParticipant]

the paper

[HagerParticipant]

this is screen shot of my results after modification ,there is an a problem of degradation of results of BER analyzer

[HagerParticipant]

the paper

[HagerParticipant]

This is new simulation after modifying it.

[HagerParticipant]

the paper

[HagerParticipant]

the paper

[HagerParticipant]

I changed sampling rate in MSK to be Twice signal frequency as attached but i can’t obtained the result in this paper Figure3(c)RoF system using MSK technique

[HagerParticipant]

an error at o/p

[HagerParticipant]

the same error in the drawing feed back

[HagerParticipant]

there is an error in the drawing feed back

[HagerParticipant]

no o/p

[HagerParticipant]

Thanks Damian very much . your answers always very helpful.

[HagerParticipant]

Hi Damian

my project represent one of SAC-OCDMA codes say i have 4 users with code length 12 wavelength range ( 1550-1558.8 ) to represent code with .8nm spectral width. i can’t determine the exact sample rate of white light source . i tried different value but when i increase the sample rate the performance improve. i put it 1.5 THZ and increase it to 2 THZ the performance improve to 10^-40 . i want to know how can determine the exact sample rate to every system ?? because i want to compare its performance with other codes so i want may result be logic and accurate.

also i try another code (construction of code is different )but has the same code length but i needed to increase the sample rate more than 1.5THZ for system to make results for all users although it has the same code length as the first code but it need more sample rate
this makes me little confused what the sample rate depend on in the system ?
also if i want to use LED haw can i determine the bandwidth value?
Thanks in advance

[HagerParticipant]

say, i have 4 users in system , when i setup the light source bandwidth , i should try different value until the BER of 4 users is almost the same ? to obtain accurate system design

[HagerParticipant]

hi domian

when i change the bitrate from say 622Mbps to 2.5Gbps and i used bandwidth of 1.5THz for the optical source at 622Mbps. the bandwidth of optical source need to change or not when i increase bitrate ?

for my previous question if for example my system consists of 3 users, you say i can take the individual channle BER as a first aproximation, if i take the BER from the 3 users and calculate the average value of the 3 BER is the results became more accurate ?