Title :
Intercarrier interference in uplink OFDMA systems with carrier frequency offset
Author :
Aziz, Babar ; Fijalkow, Inbar ; Ariaudo, Myriam
Author_Institution :
ETIS, Univ. de Cergy-Pontoise, Cergy-Pontoise, France
Abstract :
Orthogonal Frequency Division Multiplexing (OFDM) is very sensitive to carrier frequency offsets (CFO). The CFO results in intercarrier interference (ICI). This drawback of OFDM is inherited to Orthogonal Frequency Division Multiple Access (OFDMA). In this paper, we propose a new ICI model for an uplink OFDMA system that takes into account the presence of the cyclic prefix which is usually ignored. Simulations validate the accuracy of our derivation. The subcarrier allocation is revisited in the presence of CFO.
Keywords :
OFDM modulation; channel allocation; frequency division multiple access; intercarrier interference; CFO; ICI model; OFDMA systems; carrier frequency offset; cyclic prefix; intercarrier interference; orthogonal frequency division multiple access; orthogonal frequency division multiplexing; subcarrier allocation; Base stations; Discrete Fourier transforms; Interference; Mathematical model; OFDM; Resource management; Synchronization; Carrier Frequency Offset; Cyclic Prefix; Orthogonal Frequency Division Multiple Access;
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-8017-3
DOI :
10.1109/PIMRC.2010.5671922
