r3v
Newbie level 2
awgn channel
Hi,
I'm creating a simulator of the physical layer of DVB-H, and I'm doing tests over a Rician multipath channel concatenated with an AWGN channel.
My problem deals with the Simulink's AWGN Channel block.
One of the parameters I have to set if I want to generate the noise based on Eb/No is the "number of bits per symbol". I'm using 16QAM, so the value would be 4 bits per symbol.
I have read that in systems where coding is used, the number of bits you have to take into account is the number of "information bits", not having into account the redundancy bits added by the encoders.
I'm using both Reed-Solomon and convolutional encoders, so I think the correct value to set in bits/symbol would be
4*(RS ratio)*(Convolutional ratio)
The problem comes from the fact that the Simulink block only allows integer values for the bits/symbol field, so I can't specify the corrected value.
Does anybody know the way I have to take in order to solve that?
Thanks a lot in advance!!
Hi,
I'm creating a simulator of the physical layer of DVB-H, and I'm doing tests over a Rician multipath channel concatenated with an AWGN channel.
My problem deals with the Simulink's AWGN Channel block.
One of the parameters I have to set if I want to generate the noise based on Eb/No is the "number of bits per symbol". I'm using 16QAM, so the value would be 4 bits per symbol.
I have read that in systems where coding is used, the number of bits you have to take into account is the number of "information bits", not having into account the redundancy bits added by the encoders.
I'm using both Reed-Solomon and convolutional encoders, so I think the correct value to set in bits/symbol would be
4*(RS ratio)*(Convolutional ratio)
The problem comes from the fact that the Simulink block only allows integer values for the bits/symbol field, so I can't specify the corrected value.
Does anybody know the way I have to take in order to solve that?
Thanks a lot in advance!!