Degradation of Multicarrier and Single with Frequency Domain Equalization Channel Estimation and Frequency
Andreas Czylwik, Technologiezentrum Darmstadt · 1997
The performance of multicarrier and single car- rier mtodulation schemes is compared for wideband mo- bile radio communication systems. In both cases the fast Fourier transform (FFT) and its inverse are utilized. The transmission systems are simulated with time-variant transfer functions measured with a wideband channel sounder. In case of OFDM, the individual subcarriers are modulated with fixed and adaptive signal alphabets. In particular, the systems are compared with respect to the degradation due to pilot-aided channel estimation and carrier frequency synchronization.