[PLAIN]http://img100.imageshack.us/img100/702/bersimulationresult.jpg [Broken](adsbygoogle = window.adsbygoogle || []).push({});

I run a simulation on matlab, and obtain the plot above.

The red and green line is using BPSK and QPSK modulation, while the blue line is using 8psk modulation.

My questions are:

(a) is it true that BPSK and QPSK BER performance is almost identical?

(b) why is the line plot from matlab stop at 9 and 10 for BPSK and QPSK modulation eventhough both have same parameter like 8psk (except for the parameter M)? any way i can adjust it?

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# BER plot using matlab

Can you offer guidance or do you also need help?

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