DWT Image Transmission By OFDM System With Adequate Energy Saving

Resending of lost packets is not allowed in the field of communication as far as many applications are considered. Only some of the subset of carrier fulfils the criteria of data transmission. The data having least importance can be discarded at the receiver itself so that only good subcarriers can be transmitted over the channel, if the channel state information is available at the transmitter itself. In this paper, we present a system model which transmits any compressed image using DWT Image transmission by OFDM channels using QAM with an approach to save adequate energy. To achieve this bad subchannels are discarded at the transmitter itself with a usefulness of the proposed scheme in terms of peak signal-noise ratio.