Generate a turbo code, and decode the code iteratively using MAP detectors.
Punctured and unpunctured turbo codes are implemented. Probability of bit error plots can be obtained by executing MATLAB scripts.
In Soo Ahn (2021). Turbo Code Simulation (https://www.mathworks.com/matlabcentral/fileexchange/14600-turbo-code-simulation), MATLAB Central File Exchange. Retrieved .
i hAVE question why we have same ber for different turbo codes
Very well coded simulation.
its not working
In which matlab version should this simulink be executed???
Im not getting any output. Proxy buffer is the error that appears. then something else
good, but can anyone help be that I get a model but with viterbi decoder not with App decoder
please tell me joe to plot BER plot, i have tried with bertool but it's not working
can anyone help me that how i can use the same modle as shown here for images and video representation. if so please help me to solve this problem
The decision should use the sum of both app-decoder's L(u) output. The subsystem in the mdl file need to be modified accroding the Fig.1 in the reference paper "A Soft-Input Soft-Output Maximum A Posterior (MAP) Module to Decode Parallel and Serial Concatenated Codes," . I have tried this the ber is lower when modified.
I have Tried that script, initially you need to enter Var value
Thanks for your program. However, using the punctured code model, I couldn't obtain the same results as those in Berrou and Glavieux's paper. I wonder if anyone else shared the same problem.
Dear In Soo Ahn I have run your turbo code and found that it work only for sample time =1 and when i want to connect it to an OFDM system with soft decision LLR QAM it dosen't work. can you explean to me how the time for number of Iteration is considered. I need your help in this . Best Regards ...
Could you please tell me how is this terminating the trellis ?
I also want to work on this it's good but I need your help
This models is excellent,
I have done my simulation using this code, this is great code.
You have to try open it several times, from simulink window, and see the command window to adjust the preference for this code.
Seems to be good, but I tried to open it, I have errors appearing in the workspace, maybe there is some library missing.
please resubmit your model
Please give more updates and documentations on the simulink model
The code does not work
Then submit your code
I have better model, and it works
no comment... too much time wasted
Dear In Soo Ahn
I have run your turbo code and found that the there is mismatch the sampling time between input and output binary data. just you have to check by using sample color. and BER tool from tool box. I am also trying to implement UMTS RSC 1/2 rate turbo code. could you please help me to find out your algorithm, which you have used.
its not working
it is not working how u can say its easy to work
Very Intuitive and easy to use. The model assumes baseband modulation and an AWGN channel. Pretty handy. It shows the performance of Turbo codes under different channel conditions. Overall an excellent model and can be integrated into other models easily.
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