Analyse of OFDM System by BER Performance Method

Abstract

This paper studies and analyzes the BER performance of the OFDM system, and completes the system simulation on this basis, measures and calculates the BER through the SNR, the Doppler effect and the Short Guard Interval. During the simulation, we use BPSK, QPSK and 16PSK modulation techniques, and choose the Gaussian white noise channel. Using SNR, Doppler effect and Short Guard Interval effects to OFDM signal can improve the system performance.