BPSK link BER simulation¶

For a beginner of LABVIEW, The first step of simulation is building a BPSK communication chain with Gauss White Noise channel and without coding.

Communication chain of BPSK without coding

Like the figure above, we first generate the pseudorandom series bits “0” or “1”, then use BPSK modulation, we make “0” with 0 radian phase, and “1” with pi radian phase. Put signal through the Gauss White Noise channel, of course the noise comes out through the Eb/N0 calibration module, the next step is BPSK demodulation, use it to recovery the information bits, then the last step if calculate the BER. According the different Eb/N0, we get the different BER, the we draw the BER curve as a function of Eb/N0,

The following is the program block with G-language:

Figure of the communication chain blocks without coding 1