Description

This application report describes a transmission system with Orthogonal Frequency Division Multiplexing (OFDM) and Quadrature Phase Shift Keying (QPSK) over noisy multipath fading channels. When an encoder and a coherent receiver based on the maximum-likelihood estimation is added we obtain the modulator-demodulator (COFDM MODEM) presented in this paper. The required performance was obtained th