Turbo Code Simulation

Generate a turbo code, and decode the code iteratively using MAP detectors.

Description

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.

• Required Products: DSP System Toolbox
• MATLAB release: MATLAB 7.12 (2011a)
• Other requirements: Older Simulink versions do not open SIMULINK models.

[Bader Alkandari]

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.

[Sakeena Sharyar]

it is not working how u can say its easy to work

[Hussam Aburas]

its not working

[Santosh Shah]

  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.
thanking you.

[jorge luix]

no comment... too much time wasted

[romain mavudila]

 

[Esam Obiedat]

I have better model, and it works

[ruchi chaudhary]

good

[Engineer s]

Then submit your code

[John Smith]

The code does not work

[Brown Alex]

Please give more updates and documentations on the simulink model

[Mir Chad]

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

[Jaber Murad]

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.
Excellent code.

[kiran koona]

I also want to work on this it's good but I need your help

[zine lela]

 

[shahzad bhatti]

Could you please tell me how is this terminating the trellis ?

[Heri Firmansyah]

 

[Hassanen Osama]

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 ...

[hadj mostefa]

 

[Elisa Mo]

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.

[RAVINDRA DESHMUKH]

 

[Hammad Dilpazir]

I have Tried that script, initially you need to enter Var value

[Yanbo Wu]

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.

[LAKSHMANA BABU]

 

[Jaroslav Rumanek]

 

[noor gul]

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

[ajay kumar saini]

 please tell me joe to plot BER plot, i have tried with bertool but it's not working

[Lobna Ben Elbey]

good, but can anyone help be that I get a model but with viterbi decoder not with App decoder

[Lobna Ben Elbey]

 

[Hieu Luong]

 

[R]

In which matlab version should this simulink be executed???
Im not getting any output. Proxy buffer is the error that appears. then something else

[lin]

ok