Simulation of Communication Systems with MATLAB

Methodology channel capacity

Need to create a matlab model，

The abscissa x is the SNR (2)

S=Eb (energy)

B（bandwidth）In this project, the B equal to a constant 1.

The vertical axis there are four

1, channel capacity （3）

Our supervisor told us the a is equal to 2 in this project.

Then the channel capacity, which is defined to be am upper bound for the data rate that can be achieved with an arbitrarily small error probability in an AWNG channel,

2, fading channel capacity(9)

Channel gainσ√(Л/2)

σ=randn(1,1)+jrandn(1,1)

This is get from our supervisor should be used in the matlab.

3，            low channel capacity

Low band

4,up channel capacity