i want to plot the ber for the above model with interleaving,my problem is that my input signal width is 10000×1. we know that matrix interleaver dimensions product should be equal to 10000. but i want to use buffers. can you tell me how can we do this? very urgent because i have to submit my thesis within a week.

I have the simulink model uploaded at edaboard.com (http://
www.edaboard.com/viewtopic.php?t=341926&highlight=) since I dont know how to upload it here. But you can contact me via my email address, I’ll send you the model. But please help me as it is really holding me back in terms of Simulation and the use of Simulink for that matter

So have you found a better way to solve it. I tried the buffer thing. I used a buffer prior to Hamming code to make the length equal to 4 bits and fed it to Hamming encoder. After Hamming encoder the output is 7 bits. Now since I want to use interleaver 7 bits are not enough so I used another buffer to concatenate it till 200 bits. The problem is that I can’t decode it after de-interleaving. I always get an error even without any noise.

I know this problem is due to “Alignment” and “Delays” but honestly speaking I dont find Simulink tutorial in Matlab help too helpful. I hope you have solved the problem and are willing to share the solution.

Please share this solution. I’m expecting a quick reply

I am wondering if there is any way to “copy multiple blocks with their connections” into an existing Simulink system programmatically. The API does provide some functions which might be usable here, e.g. Simulink.SubSystem.copyContentsToBlockDiagram(A,B); but for that the block diagram has to be empty, similarly there is a vice versa function as well with the same restriction.

Many thanks in advance.
Best,
Masud

In the given targetlink model, I have to check
“No disconnections in port?” in MATLAB 7.3(R2006b)
Can you suggest me how to implement using API

Are there any other Simulink model users that have noticed a big difference in speed between R2007a and R2008a (and b)? Several users (Windows XP) noticed a few things:
1) The first time a open a .mdl file in R2008a, it takes a few minutes to
load, compared to a few seconds in R2007a.
2) Every so often (randomly it seems) Simulink “hangs up” when I click on a model block to open it. This could be a constant block, a switch, gain, or anything else. I double click and the whole program just stalls for about a
minute or so before the desired window pops up. This never happened to me with R2007a.
3) Model execution seems to take longer, but not orders of magnitude like the other issues listed above.

Thanks,
Ethan

Another a few more great little tools are the extra options you get when you right-click on multiple selected blocks. New menus ‘Align blocks’, ‘Distribute Blocks’ and ‘Resize Blocks’ are now available. Try them out!