Robust non data-aided frequency offset estimation technique

被引:19
|
作者
Al-Dweik, AJ [1 ]
机构
[1] Etisalat Univ, Dept Commun Engn, Sharjah, U Arab Emirates
关键词
D O I
10.1109/PIMRC.2004.1373921
中图分类号
TN [电子技术、通信技术];
学科分类号
0809 ;
摘要
A new technique to recover the carrier frequency offset of OFDM systems is proposed. The proposed technique does not require cyclic prefix, pilot signals, training symbols, or any other supplementary data, this will significantly improve the system power and bandwidth efficiency. The proposed algorithm exploits the interference that results due the loss of orthogonality between subcarriers where the variance of the resulted interference is proportional to the carrier frequency offset. The proposed technique does not require prior fine symbol synchronization and it is capable of estimating the carrier offset at E-b/N-0 as low as -3 dB with symbol timing offset that is less than or equal to 10% of the symbol duration.
引用
收藏
页码:1365 / 1369
页数:5
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