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

fYear

2010

Firstpage

746

Lastpage

751

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/PIMRC.2010.5671922

Filename

5671922