Energy detection based spectrum sensing

Hello every one…

              can any buddy say , is it possible to make simulation 

of
enegergy detection based spectrum sensing without USRP or Fun-cube
dongle
…???

if , yes . How?
guide me…

as per my opinion ,…

it may be possible by redefine block which give frequency band we
require
to sense


Thanks and regard:
*

MR.Maheshkumar P.
**
*
*call @ 9662784649
*