Affiliation:
1. SASTRA University (Deemed), India
Abstract
With the advent increase in growth of wireless technology Orthogonal Frequency Division Multiplexing (OFDM) gains popularity in recent years. OFDM forms the fundamental backbone of many currently used wireless transmission standards. It is a multicarrier modulation scheme which overcomes the need for equalizer to mitigate ISI caused due to multipath propagation. In this work, an OFDM based transceiver has been developed utilizing various modules like Source Coding, Channel Coding, IFFT-FFT, scrambler, cyclic prefix, and signal mapper. To ensure secure data transmission, Hadamard matrix is XORed with the data. This provides a low level of protection to the image which is transmitted. LabVIEW has been used as the processing tool to develop the transceiver and the prototype developed has been tested using Universal Software Radio Peripheral (USRP).
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