Blind carrier frequency offset estimation for OFDM/OQAM systems based on BEM

被引：1
|
作者：
Zhao Y. [1 ]
Chen X.-H. [1 ]
Xue L.-S. [1 ]
机构：
[1] Air and Missile Defense College of Air Force Engineering University, Xi'an
来源：
| 1600年 / Chinese Institute of Electronics卷 / 38期
关键词：
Basis expansion model (BEM); Carrier frequency offset (CFO) estimation; Offset quadrature amplitude modulation (OQAM); Orthogonal frequency division multiplexing (OFDM);
D O I：
10.3969/j.issn.1001-506X.2016.06.33
中图分类号：
学科分类号：
摘要：
The problem of frequency synchronization in orthogonal frequency division multiplexing with offset quadrature amplitude modulation (OFDM/OQAM) systems over time and frequency doubly-selective fading channels is considered in this paper. By approximating the doubly-selective channel with the basis expansion model (BEM), the second-order cyclostationarity property of the received signal in the presence of carrier frequency offset (CFO) is proved. Then, a blind CFO estimation algorithm is proposed based on the cyclostationarity. Theoretical analyses and simulation results show that the proposed blind estimator can provide robust CFO estimation performance as it is immune to the effect of noise and the fading caused by the doubly-selective channel. © 2016, Editorial Office of Systems Engineering and Electronics. All right reserved.
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页码：1435 / 1439
页数：4
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