spedigital modulation spectrum

[stsiligg]

I 'm looking for books or any type of information about digital modulation (fsk,ask,qpsk etc) and especialy for m-fsk. I' m interested in spectrum they posses. I would expect any type of help....

thanks in advance

 

[m_llaa]

Salam
I think Digital Communication by Proakis is good.

 

[hossam.algewely]

i think digital communications by simon hayken is the best in this, because proakis assumes many statistical implications that will drift you away , in other words , it is more advanced , try to find the hayken book