Title :
Generalized OFDM for bridging between OFDM and single-carrier transmission
Author :
Gacanin, H. ; Takaoka, S. ; Adachi, Fumiyuki
Author_Institution :
Graduate Sch. of Eng., Tohoku Univ., Sendai
Abstract :
One of the main problems of orthogonal frequency division multiplexing (OFDM) is high peak-to-average power ratio (PAPR). In this paper, a novel approach to alleviate the PAPR problem of OFDM is presented. A generalized OFDM (GOFDM) with frequency-domain equalization (FDE) is proposed. Various FDE techniques based on zero forcing (ZF), maximum ratio combining (MRC) and minimum mean square error (MMSE) are considered. The bit error rate (BER) performance of GOFDM in a frequency-selective fading channel is evaluated by computer simulation and compared with those of conventional OFDM and single-carrier (SC) transmission
Keywords :
OFDM modulation; equalisers; error statistics; fading channels; frequency-domain analysis; least mean squares methods; BER performance; bit error rate; frequency-domain equalization; frequency-selective fading channel; generalized OFDM; maximum ratio combining; minimum mean square error; orthogonal frequency division multiplexing; peak-to-average power ratio; single-carrier transmission; zero forcing; Bit error rate; Computer simulation; Degradation; Fading; Maximum likelihood estimation; Mean square error methods; Mobile communication; OFDM; Peak to average power ratio; Power engineering and energy;
Conference_Titel :
Communications Systems, 2004. ICCS 2004. The Ninth International Conference on
Conference_Location :
Singapore, China
Print_ISBN :
0-7803-8549-7
DOI :
10.1109/ICCS.2004.1359356
