alright ..
well, all that i am trying to do is "wireless transmission of video signal from a USB camera" !!
i have a USB web cam. Now it has a CCD sensor .. and it sends digital clocked signals at 32 frames/sec
so in order to transmit this signal, i ve to modulate it with a high frequency carrier signal. that is instantly add (merge) the camera signal with the carrier signal. then transmit the resultant signal through an antenna.
in the receiver side, i would receive this modulated signal through an antenna. i would generate the same carrier signal in the receiver side too. and i would subtract this carrier signal from the received modulated signal, so that i could get back the camera signal..
then i could feed this demodulated signal to the computer through the USB port..