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Enhanced MMSE Channel Estimation Using Timing Error Statistics for Wireless OFDM Systems

Athaudage, Chandranath R; Jayalath, Anagiyaddage Dhammik


Estimation and tracking of the frequency-selective time-varying channel response is a challenging task for wireless communication systems incorporating coherent OFDM. In pilot-symbol-assisted (PSA) OFDM systems, the minimum mean-square-error (MMSE) estimator provides the optimum performance based on the channel statistics (channel correlation function and SNR). In OFDM systems, FFT-block timing error introduces a linear phase rotation to data modulated on individual subcarriers. An MMSE channel...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: IEEE Transactions on Broadcasting
DOI: 10.1109/TBC.2004.837861


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