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

[Aya2002]

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

 

[Aya2002]

M-Array for QAM

any help please?

 

[ux]

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]

M-Array for QAM

thanks friend

 

[haki]

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