methods of modulation...

Hello majid_valentine;
Do you see the Carlson's book? I recommend you to see this book and then see the books written about telecommunication circuits, like the Kraus's book.

May you be more precise. I have some chapters from:

Algorithms for Communications Systems and Their Applications.
Nevio Benvenuto and Giovanni Cherubini
Copyright  2002 John Wiley & Sons, Ltd. ISBN: 0-470-84389-6

But I'm not sure that this is the thing you want.

thanks for your notice.

i read communication systems by clarke-hess.

but it is a little hard to understant.

which of these that you declare is applying rather than others?

my request is any of them that you suggest.

thanks and regard.