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Start Over "Whan-Woo Kim" Journal 2005 ieee 61st vehicular technology conference
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1. Frequency Domain-DFE coupled with Common Phase Error Tracking Loop in OFDM Systems

Author

Whan-Woo Kim and Ji-Heon Kim

Subjects
Common phase error, Computer science, Control theory, Orthogonal frequency-division multiplexing, Frequency domain, Phase noise, Phase (waves), Tracking loop, Electronic engineering, Equalizer, Tracking (particle physics), Rotation (mathematics)
Abstract

OFDM systems are very sensitive to the phase noise. The phase noise in OFDM has two side effects: common phase error (CPE) and intercarrier interference (ICI). Especially, the rotation of constellation caused by CPE may be fatal in coherent schemes. This paper suggests an equalizer coupled with a phase tracking algorithm to combat frequency selectivity and to correct CPE. Computer simulations prove that CPE can be reduced by the phase tracking loop with low complexity.

Published
2005
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