Rule to construct square constellation for the M-Array QAM?

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Aya2002

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M-Array for QAM

Hi experts,

can someone help me to find the general rule to construct the square constellation for the M-Array QAM?

Thank you
 

M-Array for QAM

any help please?
 

Re: M-Array for QAM

I do not think there is one main rule. The numbering of points in the constellation depends on the specific code. Often used a pragmatic approach, google BICM, double Gray coding, etc.
 

    Aya2002

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M-Array for QAM

thanks friend
 

M-Array for QAM

there are many rule here some:
1-the ratio between the bandwith of the channel of transmission and the data rate of the signal to transmit;
2-the ratio of signal to noise of the channel of transmission;
3-the data rate
 

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