Preamble-Assisted Estimation for Frequency-Dependent I/Q Mismatch in Direct-Conversion OFDM Receivers

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概要

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• In direct-conversion orthogonal frequency division multiplexing (OFDM) receivers, the impact of frequency-dependent I/Q mismatch (IQ-M) with carrier frequency offset (CFO) must be considered. A preamble-assisted estimation is developed to circumvent the frequency-dependent IQ-M with CFO. The results of a simulation and an experiment show that the proposed method could provide good estimation efficiency and enhance the system performance. Moreover, the proposed scheme is compatible with current wireless local area network standards.

• 2009-07-01

著者

• Sun Ming-fu

  Department Of Computer Science National Chiao-tung University

• Hsu Terng-yin

  Department Of Computer Science National Chiao-tung University

関連論文

• Preamble-Assisted Estimation for Frequency-Dependent I/Q Mismatch in Direct-Conversion OFDM Receivers
• MLP/BP-Based Soft Decision Feedback Equalization with Bit-Interleaved TCM for Wireless Applications(Neural Networks and Bioengineering)

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