Fast frequency offset estimation in OFDM system

Zhong Shan Zhang; Xiao Ming Liu; Ming Zhao; Yuan An Liu; Jin Chun Gao

Fast frequency offset estimation in OFDM system

Zhong Shan Zhang^*, Xiao Ming Liu, Ming Zhao, Yuan An Liu, Jin Chun Gao

^*此作品的通讯作者

Beijing University of Posts and Telecommunications

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

A new carrier frequency offset estimation scheme in orthogonal frequency division multiplexing (OFDM) system is proposed. The carrier frequency offset estimation includes acquisition and tracking, and acquisition as well as timing synchronization can be performed simultaneously with high accuracy. The maximum acquisition range can be up to one half of overall signal bandwidth. The proposed tracking estimator is a maximum-likelihood estimator, and in AWGN channel, about 7.27 dB improvement is obtained compared to the Schmidl's algorithm when N=128; in multipath channel, the proposed algorithm works well at moderate SNR.

源语言	英语
页（从-至）	41-44+55
期刊	Beijing Youdian Xueyuan Xuebao/Journal of Beijing University of Posts And Telecommunications
卷	27
期	5
出版状态	已出版 - 10月 2004
已对外发布	是

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title = "Fast frequency offset estimation in OFDM system",

abstract = "A new carrier frequency offset estimation scheme in orthogonal frequency division multiplexing (OFDM) system is proposed. The carrier frequency offset estimation includes acquisition and tracking, and acquisition as well as timing synchronization can be performed simultaneously with high accuracy. The maximum acquisition range can be up to one half of overall signal bandwidth. The proposed tracking estimator is a maximum-likelihood estimator, and in AWGN channel, about 7.27 dB improvement is obtained compared to the Schmidl's algorithm when N=128; in multipath channel, the proposed algorithm works well at moderate SNR.",

keywords = "Frequency offset estimation, Multipath channel, Orthogonal frequency division multiplexing",

author = "Zhang, {Zhong Shan} and Liu, {Xiao Ming} and Ming Zhao and Liu, {Yuan An} and Gao, {Jin Chun}",

year = "2004",

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T1 - Fast frequency offset estimation in OFDM system

AU - Zhang, Zhong Shan

AU - Liu, Xiao Ming

AU - Zhao, Ming

AU - Liu, Yuan An

AU - Gao, Jin Chun

PY - 2004/10

Y1 - 2004/10

N2 - A new carrier frequency offset estimation scheme in orthogonal frequency division multiplexing (OFDM) system is proposed. The carrier frequency offset estimation includes acquisition and tracking, and acquisition as well as timing synchronization can be performed simultaneously with high accuracy. The maximum acquisition range can be up to one half of overall signal bandwidth. The proposed tracking estimator is a maximum-likelihood estimator, and in AWGN channel, about 7.27 dB improvement is obtained compared to the Schmidl's algorithm when N=128; in multipath channel, the proposed algorithm works well at moderate SNR.

AB - A new carrier frequency offset estimation scheme in orthogonal frequency division multiplexing (OFDM) system is proposed. The carrier frequency offset estimation includes acquisition and tracking, and acquisition as well as timing synchronization can be performed simultaneously with high accuracy. The maximum acquisition range can be up to one half of overall signal bandwidth. The proposed tracking estimator is a maximum-likelihood estimator, and in AWGN channel, about 7.27 dB improvement is obtained compared to the Schmidl's algorithm when N=128; in multipath channel, the proposed algorithm works well at moderate SNR.

KW - Frequency offset estimation

KW - Multipath channel

KW - Orthogonal frequency division multiplexing

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AN - SCOPUS:19944384883

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JF - Beijing Youdian Xueyuan Xuebao/Journal of Beijing University of Posts And Telecommunications

IS - 5

ER -

Fast frequency offset estimation in OFDM system

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