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gray coding to the data stream. Compare the bit error rates of the two tasks.

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salem123456

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hi

mat codes have been done correctly, i would like to know that how to compare those things
here is the question

Consider the example of digital modulation with gray coding . transmit a binary data stream using communication system that consists of a modulator , channel and demodulator ,perform the tasks in the following ,
mat lab code has been done.
then
Repeat this task without applying gray coding to the data stream. Compare the bit error rates of the two tasks

thanks
 

I don't think BER will differ, gray coding allows the QPSK modulation and demodulation to divide as two parallel BPSK transceivers.
 
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