Obtained Diversity Gain in OFDM Systems under the Influence of IQ Imbalance

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概要

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• In this paper, we analyze the effects of IQ (In-phase/Quadrature-phase) imbalance at both transmitter and receiver of OFDM (Orthogonal Frequency Division Multiplexing) system and show that more diversity gain can be achieved even though there are unwanted IQ imbalance. When mixed sub-carriers within an OFDM symbol due to the IQ imbalance undergo frequency selective channels, additional diversity effects are expected during the demodulation process. Simulation results on the symbol error rate (SER) performance with ML (Maximum Likelihood) and OSIC (Ordered Successive Interference Cancellation) receiver show that significant performance gain can be achieved with the diversity gain caused by the IQ imbalance combined with the frequency selective channels.

• （社）電子情報通信学会の論文
• 2008-03-01

著者

• Ahn Jaemin

  Chungnam National University

• JIN Younghwan

  Chungnam National University

• KWON Jihyeon

  Chungnam National University

• LEE Yuro

  Chungnam National University

• LEE Dongchan

  A-Logics

関連論文

• Obtained Diversity Gain in OFDM Systems under the Influence of IQ Imbalance

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