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Low-Complexity Estimation of CFO and Frequency Independent I/Q Mismatch for OFDM Systems

Chen, Ying; Zhang, Jian (Andrew); Jayalath, A D S


CFO and I/Q mismatch could cause significant performance degradation to OFDM systems. Their estimation and compensation are generally difficult as they are entangled in the received signal. In this paper, we propose some low-complexity estimation and compensation schemes in the receiver, which are robust to various CFO and I/Q mismatch values although the performance is slightly degraded for very small CFO. These schemes consist of three steps: forming a cosine estimator free of I/Q mismatch...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: EURASIP Journal on Wireless Communications and Networking
DOI: 10.1155/2009/542187


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