Title :
Performance limits of multicarrier based systems in fading channels with optimal detection
Author :
Tonello, Andrea M.
Author_Institution :
Lucent Technol. Bell Labs., Whippany, NJ, USA
Abstract :
We investigate the best attainable performance (performance limits) of multicarrier modulated signals in time-variant frequency selective fading channels when optimal maximum likelihood detection is deployed. It is found that filtered multicarrier modulation is a diversity transform that is capable of yielding coding gains and time/frequency diversity gains as a function of the sub-carrier spacing, and the sub-channel filter shape.
Keywords :
OFDM modulation; diversity reception; fading channels; matched filters; maximum likelihood detection; time-varying channels; OFDM; coding gains; discrete multitone modulation; diversity transform; fading channels; filtered multicarrier modulation; filtered multitone modulation; frequency selective channels; matched filter bound; maximum likelihood detection; multicarrier modulated signals; sub-carrier spacing; sub-channel filter shape; time-variant channels; time/frequency diversity gains; Digital filters; Fading; Frequency diversity; Frequency modulation; Intersymbol interference; Matched filters; Maximum likelihood detection; Modulation coding; OFDM modulation; Shape;
Conference_Titel :
Wireless Personal Multimedia Communications, 2002. The 5th International Symposium on
Print_ISBN :
0-7803-7442-8
DOI :
10.1109/WPMC.2002.1088329
