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PERFORMANCE EVALUATION OF AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SYSTEM

In this paper, it is proposed that to achieve higher data rates and to combat to effect of multipath propagation, orthogonal frequency division multiplexing system (OFDM) is a promising technique. OFDM allows many users to transmit in an allocated carrier. Each user is allocated several carriers in which to transmit their data.The transmission is generated in such a way that the carriers used are orthogonal to one another, thus allowing them to be packed together much closer than standard frequency division multiplexing. This leads to OFDM providing a high spectral efficiency. Image and wave files are chosen as input data for simulation and the performance of the OFDM system for various values of different parameters are evaluated and compared.