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code rate
I want to plot the minimum Eb/N0 in dB dependent on the code rate r=k/n where k=binary length of the information word and n=binary length of the code word. In the attached paper formula 12 explains how to do that.
The problem is I don't know how to calculate M^-1(r).
In formula 10...
Hello,
The Shannon limit is Eb/N0=(2^(n)-1)/n where n=2*r
So the Shannon limit for r=1/2 should be Eb/N0=1 and in dB 0dB.
In the literature it is often said to be 0.97869 (0,19dB)!
For example here:
eBook-turbo and Trellis Coding
and here...
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