Performance Analysis of OFDM System over LEO Satellite Channel

Abstract

In this paper an exact closed-form expression for the performance of the orthogonal frequency-division multiplexing (OFDM) system over LEO satellite channel is derived where each subcarrier is modulated by M-QAM. The effect of two channel parameters, namely the mean delay spread and maximum Doppler shift, on the system performance is investigated for a realistic wireless channel environment model.