Title :
Degradation of multicarrier and single carrier transmission with frequency domain equalization due to pilot-aided channel estimation and frequency synchronization
Author :
Czylwik, Andreas
Author_Institution :
Deutsche Telekom AG, Darmstadt, Germany
Abstract :
The performance of multicarrier and single carrier modulation schemes is compared for wideband mobile 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
Keywords :
adaptive systems; equalisers; fast Fourier transforms; frequency division multiplexing; land mobile radio; modulation; parameter estimation; synchronisation; telecommunication channels; transfer functions; FFT; OFDM; adaptive signal alphabets; degradation; fast Fourier transform; fixed signal alphabets; frequency domain equalization; frequency synchronization; individual subcarriers; inverse FFT; modulation schemes; multicarrier transmission; performance; pilot-aided channel estimation; single carrier transmission; time-variant transfer functions; wideband channel sounder; wideband mobile radio communication systems; Channel estimation; Degradation; Error probability; Fast Fourier transforms; Frequency domain analysis; Frequency synchronization; OFDM modulation; Receivers; Transfer functions; Wideband;
Conference_Titel :
Global Telecommunications Conference, 1997. GLOBECOM '97., IEEE
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-4198-8
DOI :
10.1109/GLOCOM.1997.632506
