Joint Channel Estimation and Phase Noise Suppression for OFDM Systems

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概要

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• Phase noise (PHN) can cause the common phase error (CPE) and the inter-carrier interference (ICI), both of which impair the accurate channel estimation in orthogonal frequency division multiplexing (OFDM) systems. In this letter, we build a new signal model parameterized by the channel impulse response, the CPE and the ICI. Based on this model, we derive the maximum likelihood estimator (MLE) and the minimum mean square error estimator (MMSEE). Simulation results show that the proposed schemes significantly improve the performance of OFDM systems in the presence of PHN.

• （社）電子情報通信学会の論文
• 2008-10-01

著者

• Kim Seong-cheol

  School Of Electrical Engineering And Computer Science Seoul National University

• Kim Yong-hwa

  Korea Electrotechnology Research Institute (keri)

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