Frequency offset estimator for OFDM with time-frequency training sequence

JIANG Yan-xiang; WANG Dong-ming; GAO Xi-qi; YOU Xiao-hu

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Frequency offset estimator for OFDM with time-frequency training sequence

更新时间：2024-10-14

- Frequency offset estimator for OFDM with time-frequency training sequence
- Issue 6, Pages: 10-15(2006)
- 作者机构：
  
  1. 东南大学移动通信国家重点实验室
  2. 东南大学移动通信国家重点实验室,江苏,南京,210096
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN919.3
- Published：2006
- 稿件说明：
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JIANG Yan-xiang, WANG Dong-ming, GAO Xi-qi, et al. Frequency offset estimator for OFDM with time-frequency training sequence[J]. 2006, (6): 10-15.
DOI：

JIANG Yan-xiang, WANG Dong-ming, GAO Xi-qi, et al. Frequency offset estimator for OFDM with time-frequency training sequence[J]. 2006, (6): 10-15. DOI：

摘要

给出了一种比率可调节的时频训练序列

通过频域训练序列和预定义查找表实现粗频偏估计

通过时域训练序列实现细频偏估计。仿真结果与复杂度分析表明所提出的方法在负载几乎相同的情况下

性能优于Lei的方法

而运算量却大大降低。

Abstract

A ratio-adjustable time-frequency training sequence was proposed.The coarse carrier frequency offset（CFO） estimation was accomplished with the aid of the training sequence in frequency domain and a predefined lookup table

while the fine one was obtained by the aid of the training sequence in time domain.Simulation results show that the per-formance of the proposed method is better than Lei’s method with almost the same overhead.However

its computational complexity is much lower than Lei’s.

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