Hi Chaaru,
When using the "pskmod" function in MATLAB, the generated symbols already have a magnitude of 1, assuming the use of standard sine/cosine basis functions. If you are using a different basis function, or if you wish to adjust the average power, you can simply scale the output of "pskmod" by the square root of the desired average power.
For more information, I recommend referring to the following MATLAB Answers post:
