  Interference is the most important issue for present wireless communication.
There are various kinds of channel used in wireless communication. Here I want
to show a performance analysis on the basis of two different channels - AWGN
and Multipath Rayleigh fading channel. This is the comparative analysis with
different kinds of modulation techniques. Here I have also measured the Bit
Error Rate with respect to different modulation techniques and compare the rate
in different channels. My objective is to compare the different characteristics
of the transmitter and receiver for different types of channels and modulators.
