Estimation of OFDM integer frequency offset over rapidly time-varying channels

被引：1

作者：

You, Young-Hwan ^{[1
]}

Kang, Sung-Jin ^{[1
]}

Hong, Dae-Ki ^{[1
]}

Lee, Jang-Yeon ^{[1
]}

Cho, Jin-Woong ^{[1
]}

机构：

[1] Sejong Univ, Sch Comp Engn, uT Commun Res Inst, Seoul, South Korea

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2006年 / E89B卷 / 07期

关键词：

OFDM; time-varying channel; integer frequency offset; pilot symbol;

D O I：

10.1093/ietcom/e89-b.7.2099

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, we present a simple way of estimating the integer frequency offset of orthogonal frequency division multiplexing(OFDM) system over a rapidly time-varying channel. By utilizing the channel responses of neighboring subcarriers within one pilot symbol, the frequency offset estimator is derived. We show by simulation that the proposed estimator can accurately estimate the integer frequency offset with reduced computational burden.

引用

页码：2099 / 2101

页数：3

共 6 条

[1] Maximum likelihood method for integer frequency offset estimation of OFDM systems [J].

Chen, C ;

Li, J .

ELECTRONICS LETTERS, 2004, 40 (13) :813-814

[2] A TECHNIQUE FOR ORTHOGONAL FREQUENCY-DIVISION MULTIPLEXING FREQUENCY OFFSET CORRECTION [J].

MOOSE, PH .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1994, 42 (10) :2908-2914

[3] Frequency ambiguity resolution in OFDM systems [J].

Morelli, M ;

D'Andrea, AN ;

Mengali, U .

IEEE COMMUNICATIONS LETTERS, 2000, 4 (04) :134-136

[4] BER SENSITIVITY OF OFDM SYSTEMS TO CARRIER FREQUENCY OFFSET AND WIENER PHASE NOISE [J].

POLLET, T ;

VANBLADEL, M ;

MOENECLAEY, M .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1995, 43 (2-4) :191-193

[5] Robust frequency and timing synchronization for OFDM [J].

Schmidl, TM ;

Cox, DC .

IEEE TRANSACTIONS ON COMMUNICATIONS, 1997, 45 (12) :1613-1621

[6] ML estimation of time and frequency offset in OFDM systems [J].

vandeBeek, JJ ;

Sandell, M ;

Borjesson, PO .

IEEE TRANSACTIONS ON SIGNAL PROCESSING, 1997, 45 (07) :1800-1805

← 1 →