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Carrier Frequency Synchronization for OFDM Systems in the Presence of Phase Noise
Yong-Hwa KIM Jong-Ho LEE Seong-Cheol KIM
IEICE TRANSACTIONS on Communications
Publication Date: 2007/06/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
orthogonal frequency-division multiplexing (OFDM), carrier frequency offset (CFO), channel estimation, phase noise (PHN),
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A carrier frequency synchronization scheme is proposed for orthogonal frequency-division multiplexing (OFDM) systems in the presence of phase noise (PHN). In the proposed scheme, carrier frequency synchronization is performed based on the maximum-likelihood (ML) algorithm using an OFDM preamble symbol. The proposed scheme is compared with conventional methods. Simulation results are presented to illustrate the effectiveness of the proposed scheme in the presence of PHN.