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BER plot using matlab

  1. May 2, 2010 #1
    [PLAIN]http://img100.imageshack.us/img100/702/bersimulationresult.jpg [Broken]

    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?
    Last edited by a moderator: May 4, 2017
  2. jcsd
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