GMSK

Digital communications by Proakis is a book for you.

What the use of your GMSK? real communication system or
simulation?

hi !

it's a simulation using matlab.any suggestion ?

There is a simulink example.

http://www.mathworks.com/access/help...g/fp38538.html

particularly use communication toolbox, u can get more knowlege about how to simulate GMSK. There is some example solutions are available with MATLAB help. u can find that in mathworks website