An Efficient Inter-Carrier Interference Cancellation Scheme for OFDM Systems with Frequency Estimation Errors

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概要

• 論文の詳細を見る

• One of the major drawbacks of orthogonal frequency division multiplexing (OFDM) systems is their vulnerability to synchronization errors. To remedy the inter-carrier interference (ICI) effect caused by carrier frequency offset (CFO) estimation errors, this paper proposes a weighted linear parallel ICI cancellation (WLPICIC) equalizer. The optimal weights in the WLPICIC scheme are derived in closed-form expressions by maximizing the average signal-to-interference ratio (SIR) at the WLPICIC output of each sub-carrier. The simulation results show that the WLPICIC equalizer significantly improves the performance of OFDM systems with frequency estimation errors in both AWGN channels and frequency selective fading channels.

• （社）電子情報通信学会の論文
• 2010-12-01

著者

• Li Chih-peng

  Institute Of Communications Engineering And The Department Of Electrical Engineering National Sun Ya

• Hu Wei-wen

  Department Of Electrical Engineering National Sun Yat-sen University

関連論文

• Virtual-FIFO Back-Off Algorithm for Collision Resolution in Wireless Networks(Wireless Communication Technologies)
• Subcarrier Power Allocation in OFDM-Based Dual-Hop Systems with AF Relaying
• An Efficient Inter-Carrier Interference Cancellation Scheme for OFDM Systems with Frequency Estimation Errors

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