Synchronization and Channel Estimation in Cyclic Postfix Based OFDM System(Transmission Systems and Transmission Equipment for Communications)

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概要

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• We propose a new cyclic postfix based orthogonal frequency division multiplexing (OFDM) system. The proposed system shows superior performance in symbol time synchronization while achieving channel estimation performance comparable to that of conventional cyclic prefix based OFDM system. In the proposed system, an identical postfix is generated at the end of each OFDM symbol by inserting pilot values amongst the data symbols in a frequency domain and performing Inverse Fast Fourier Transform (IFFT) operation on it. Robust time synchronization is achieved by auto-and cross-correlating the postfix. Also, time or frequency domain channel estimation can be realized by using properly designed postfix according to channel estimation method.

• 2007-03-01

著者

• SEO Jongsoo

  Dept. of Electrical and Electronic Engineering of Yonsei University

• Lee Sangjin

  Dept. Of Electrical And Electronic Engineering Of Yonsei University

• KIM Jongkyung

  Dept. of Electrical and Electronic Engineering of Yonsei University

関連論文

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• Performance Analysis of Fixed-Margin Iterative Water-Filling for ADSL2+ and VDSL Mixed System
• A Weighted Element-Wise Block Adaptive Frequency-Domain Equalization(Wireless Communication Technologies)
• Synchronization and Channel Estimation in Cyclic Postfix Based OFDM System(Transmission Systems and Transmission Equipment for Communications)

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