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Joint Channel Estimation and Phase Noise Suppression for OFDM Systems

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Authors
Kim, Seong-Cheol; Park, Yong-Wan; Lee, Jong-Ho; Yang, Jun-Seok
Issue Date
2005-06
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Citation
VTC 2005-Spring. 2005 IEEE 61st Vehicular Technology Conference, 2005
Keywords
Channel estimationphase noiseEMOFDM
Abstract
The joint channel estimation and phase noise
suppression scheme for orthogonal frequency-division
multiplexing (OFDM) systems is proposed for a case where
channel estimation is needed symbol by symbol. In the proposed
scheme, channel estimation and phase noise suppression are
performed iteratively via the expectation-maximization (EM)
algorithm. The proposed algorithm mitigates the performance
degradation due to phase noise effectively while providing the
accurate channel estimate with comparatively few pilot
subcarriers so that the spectral efficiency of an OFDM system is
improved.
Language
English
URI
http://hdl.handle.net/10371/7750
DOI
https://doi.org/10.1109/VETECS.2005.1543334
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College of Engineering/Engineering Practice School (공과대학/대학원)Dept. of Electrical and Computer Engineering (전기·정보공학부)Others_전기·정보공학부
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