Carrier Frequency Offset Estimation for OFDM Systems by Histogram

被引：2
|
作者：
Chen, Ju-Ya [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Inst Commun Engn, Kaohsiung 80424, Taiwan
来源：
IEICE TRANSACTIONS ON COMMUNICATIONS | 2010年 / E93B卷 / 10期
关键词：
OFDM; carrier frequency offset; estimation; histogram;
D O I：
10.1587/transcom.E93.B.2766
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：
Carrier frequency offset may distort the orthogonality of the subcarriers in OFDM systems and it must be estimated and compensated to maintain the system performance. A blind carrier frequency offset estimator based on the histogram of the received signal's phase is proposed in this letter. The proposed estimator can operate under additive white Gaussian noise and multipath channels without known training signal, redundant guard interval, and virtual carrier. Compared to subspace-based blind estimators, the proposed estimator can provide better mean-square-error performance.
引用
收藏
页码：2766 / 2768
页数：3
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