Title :
Design of robust pulses to carrier frequency offset for OFDM/OQAM system
Author :
Lin, Gang ; Holte, Nils ; Lundheim, Lars
Author_Institution :
Dept. of Electron. & Telecommun., Norwegian Univ. of Sci. & Technol., Trondheim, Norway
fDate :
28 Nov.-2 Dec. 2005
Abstract :
The high sensitivity to carrier frequency offset of OFDM systems compared to single carrier systems is well known. In this paper we study how this can be remedied for OFDM/OQAM systems by appropriate pulse shaping. Building on earlier methods for minimizing out-of-band energy, a procedure for pulse shape design is derived. The new pulses are optimal with respect to interference in OFDM/OQAM systems. It is also demonstrated that, in this respect, OFDM/OQAM outperforms OFDM/QAM systems using rectangular pulses.
Keywords :
OFDM modulation; interference; pulse shaping; quadrature amplitude modulation; OFDM; OQAM system; carrier frequency offset; interference; out-of-band energy minimization; pulse shaping; rectangular pulses; robust pulses; single carrier systems; Buildings; Couplings; Filters; Interchannel interference; OFDM modulation; Pulse modulation; Pulse shaping methods; Quadrature amplitude modulation; Robustness; Shape;
Conference_Titel :
Global Telecommunications Conference, 2005. GLOBECOM '05. IEEE
Print_ISBN :
0-7803-9414-3
DOI :
10.1109/GLOCOM.2005.1577886
