Re: 问一个coding的问题# EE - 电子工程
k*c
1 楼
There seems to be quite some confusion about this problem. Let me rephrase
this problem first, just to see if we have the same understanding: For an AWGN
channel with fixed SNR, the problem being asked is given the block length,
what is the maximum rate to achieve a certain block error rate, say $10^{-6}$
here. Rockey, is it your question?
For me, the first thought is Gallager's random coding error exponent $P_e \leq
\exp{-nE_r(R)}$. Refering the curve $E_r(R)$ V.S. $R$, you can obtain an upper
this problem first, just to see if we have the same understanding: For an AWGN
channel with fixed SNR, the problem being asked is given the block length,
what is the maximum rate to achieve a certain block error rate, say $10^{-6}$
here. Rockey, is it your question?
For me, the first thought is Gallager's random coding error exponent $P_e \leq
\exp{-nE_r(R)}$. Refering the curve $E_r(R)$ V.S. $R$, you can obtain an upper