OFDM系统的鲁棒整数频偏估计

The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007) Pub Date : 2007-08-27 DOI:10.1109/AUSWIRELESS.2007.68

Eu-Suk Shim, Hyoung-Kyu Song, Y. You, Byoung-Heon Lee, J. Yi

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引用次数: 1

摘要

正交频分复用(OFDM)系统对载波频偏和符号时序误差非常敏感。研究了不借助导频符号的整数频偏估计方法。所提出的IFO估计器利用两个连续相同的OFDM数据符号，仅改变相位。为了证明所提出的IFO估计器的效率，在误差性能、估计范围和复杂性方面与其他现有估计器进行了比较。

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Robust Integer Frequency Offset Estimation for OFDM System

Orthogonal frequency division multiplexing (OFDM) systems are highly sensitive to carrier frequency offset and symbol timing error. This paper deals with estimation method of integer frequency offset (IFO) without the aid of pilot symbols. The proposed IFO estimator exploits two consecutive identical OFDM data symbols with only change of phase. To demonstrate the efficiency of the proposed IFO estimators, comparisons are made with other existing estimators in terms of error performance, estimation range, and complexity.

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The 2nd International Conference on Wireless Broadband and Ultra Wideband Communications (AusWireless 2007)

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