shannon capacity and Symbol Error Rate估计，此程序是调试过的，比较实用于衰减信道。-shannon capacity and Symbol Error Rate is estimated that this program is to debug with,and the more practical in the fading channel.

This technique doesn t involve sorting of probabilities as in Shannon-Fano coding. The following formula is used to calculate F (x) which in turn generates the code F (x) = F(x) + p(x) / 2, where F(x) is cummulative sum of probabilities p(x).

This MATLAB Code plot BER Vs Eb/No for M_ary PSK with different values of M. The user can choose the desired BER and the code will tell what is the required Eb/No to achieve this BER for different values of M. In addition, a plot for shannon limit is