QPSK simulation

I want to simulate QPSK modulation in matlab.
The simulation should perform QPSK modulation on input binary sequency and show a waveform plot. Please suggest me how I should proceed. I'm not asking for codes, rather for guidelines only.
Thanks
M

you will need to use the communication toolbox.

here is an example of 16 qam.

http://www.mathworks.com/access/help...4315047b1.html

let me know if you need any more information

Added after 6 minutes:



more information on qpsk can be found here:

http://www.mathworks.com/matlabcentr...bjectType=file