Performance of carrier frequency synchronization for OFDM-based mobile cellular systems over time selective fading channels

Won-Jae Shin, Hyun Yang and Young-Hwan You

Journal of Electromagnetic Waves and Applications, 2013, vol. 27, issue 8, 989-998

Abstract: This paper evaluates the performance of a cell-specific reference signal (RS)-assisted residual carrier-frequency offset (CFO) detection scheme for a long-term evolution (LTE) downlink in a time-varying channel. Channel variations severely degrade the performance of OFDM by introducing both a complicated multiplicative distortion and an additive inter-carrier interference. Taking into consideration the effect of time-variant fading channels, an analytical closed-form expression of the mean square error (MSE) of the post-FFT CFO detection scheme is derived. The analytical expression is verified through simulations using the parameters of the LTE standard.

Date: 2013
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DOI: 10.1080/09205071.2013.795119

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