OFDM Simulator Using MATLAB

Orthogonal frequency division multiplexing (OFDM) is a special case of multicarrier transmission and frequency division multiplexing, where a single data stream is transmitted over several lower rate subcarriers, placed orthogonal to each other. Today it is becoming the chosen modulation technique for wireless communications. It can provide large data rates with optimum bit error rate and enough robustness to radio channel impairments. In this paper, a user interface is designed using GUI tool of MATAB which facilitates us to analyze the performance of OFDM system in terms of SNR vs. BER variation. BPSK, QPSK and QAM techniques are analyzed in reference to OFDM processing. Rayleigh Fading channel and Multipath fading channels are used as a communication channel.