Title :
Asynchronous uplink transmission in FMT-FDMA systems
Author :
Costa, E. ; Filippi, A. ; Ometto, S. ; Weckerle, M. ; Schulz, E.
Author_Institution :
Siemens AG, Germany
Abstract :
Multi-carrier (MC) transmission is seen as the leading candidate for beyond 3G mobile communications. We focus here on the MC scheme known as filtered multi tone (FMT) modulation. We investigate its suitability for an asynchronous uplink multi-user scenario, under the hypothesis of frequency division multiple access (FDMA). In particular, we show the influence of the filter spectral characteristics and the effects of introducing some redundancy in bandwidth through non-critical sampling. Furthermore, we compare the achievable performance with that of an OFDMA system over an AWGN channel in terms of bit error rate.
Keywords :
AWGN channels; OFDM modulation; error statistics; frequency division multiple access; radio links; signal sampling; AWGN channel; FMT-FDMA systems; OFDMA system; additive white Gaussian noise channel; asynchronous uplink transmission; beyond 3G mobile communications; bit error rate; filter spectral characteristics; filtered multitone modulation; frequency division multiple access; multicarrier transmission; multiuser scenario; noncritical sampling; orthogonal frequency division multiple access; Bandwidth; Digital filters; Digital modulation; Frequency conversion; Frequency division multiaccess; Intersymbol interference; Mobile communication; OFDM modulation; Prototypes; Robustness;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2003. PIMRC 2003. 14th IEEE Proceedings on
Print_ISBN :
0-7803-7822-9
DOI :
10.1109/PIMRC.2003.1260279
