Iterative OFDM receiver with channel estimation and frequency-offset compensation.

Nguyen, Huan X. and Choi, Jinho (2006) Iterative OFDM receiver with channel estimation and frequency-offset compensation. Communications (ICC), IEEE International Conference, 2006 . pp. 4583-4588. ISSN 1550-3607

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In this paper, using the turbo principle, different iterative receiver designs are proposed for orthogonal frequency division multiplexing (OFDM) systems under a time-varying channel environment. In the presence of carrier frequency offset (CFO) error, the iterative receiver can improve the performance as better channel estimation and CFO compensation are available through iterations. The mitigation of the CFO is carried out via the two proposed methods - time domain compensation (TDC) and frequency domain cancellation which uses a decision feedback equalizer (DFE-FDC). The complexity of the DFE-FDC method is higher than that of the TDC approach as more operations are required to update the DFE coefficients. However, our simulation results show that the DFE-FDC outperforms the TDC for each iteration.

Item Type:Article
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Conference details: The 2006 IEEE International Conference on Communications (ICC 2006). Held in Istanbul, Turkey on 11-15 June 2006

Research Areas:School of Science and Technology > Science & Technology
ID Code:7691
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Deposited On:19 Apr 2011 14:31
Last Modified:06 Feb 2013 11:35

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