FFT Based Superimposed Pilot Aided Carrier Frequency Offset Estimation in OFDM Systems

被引：0

作者：

Liu, Licheng ^{[1
]}

Dai, Xianhua ^{[2
]}

机构：

[1] Sun Yat Sen Univ, Sch Informat Sci & Technol, Guangzhou, Guangdong, Peoples R China

[2] Guangdong Univ Technol, Sch Informat Engn, Guangzhou, Peoples R China

来源：

2008 4TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS, NETWORKING AND MOBILE COMPUTING, VOLS 1-31 | 2008年

基金：

美国国家科学基金会;

关键词：

carrier frequency offset; superimposed pilots; OFDM;

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, a novel superimposed pilot based carrier frequency offset (CFO) estimator for Orthogonal frequency division multiplexing (OFDM) systems over frequency selective fading channel is proposed. Through utilizing the properly designed superimposed pilots, the CFO estimation can be resolved by implementing the fast Fourier transform (FFT) operation on the average values of the received signals on all subcarriers within several consecutive OFDM blocks. Compared with the existing superimposed training aided algorithm, the proposed scheme can obtain more accurate CFO estimation without increasing computation complexity. The simulation results verify the robustness and effectiveness of the proposed estimator.

引用

页码：658 / +

页数：2

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