THE EFFECT OF WIENER PHASE NOISE IN OFDM SYSTEMS

Multicarrier modulation exhibits a significant sensitivity to the phas e noise of the oscillator used for frequency down-conversion at the po rtable receiver, For this reason, it is important to evaluate the impa ct of the phase noise on the system performance. In this letter we pre sent an accurate method to determine the error probability of an ortho gonal frequency-division multiplexing (OFDM) system in the presence of phase noise, In particular, four modulation schemes are analyzed and their performances are compared.