Analysis of Fine Frequency Synchronization for OFDM in Time-Varying Channels

Hyun YANG  Young-Hwan YOU  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E94-A   No.1   pp.405-409
Publication Date: 2011/01/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E94.A.405
Print ISSN: 0916-8508
Type of Manuscript: PAPER
Category: Mobile Information Network and Personal Communications
Keyword: 
OFDM,  synchronization,  residual carrier frequency offset,  mobile WiMAX,  

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Summary: 
This paper evaluates the performance of a pilot-assisted fine carrier frequency offset (CFO) estimation scheme for orthogonal frequency division multiplexing (OFDM) in time-varying channels. An analytical closed-form expression of the mean square error (MSE), of the post-FFT based CFO synchronization scheme, is presented in terms of time-variant fading channels. To verify our analysis in this paper, simulations are carried out within the framework of mobile WiMAX systems.