A novel OFDM time and frequency synchronization algorithm

被引：0
|
作者：
Ma, XY
Zhao, CM
You, XH
机构：
来源：
2003 INTERNATIONAL CONFERENCE ON COMMUNICATION TECHNOLOGY, VOL 1 AND 2, PROCEEDINGS | 2003年
关键词：
OFDM; frequency offset; timing error; pseudo noise sequence (PN-sequence); Cramer-Rao lower bound;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
OFDM system performance is more sensitive to frequency offset and timing error than single-carrier systems. In this paper, the integer frequency offset is estimated based on the special pilot symbols; the timing error estimation value is obtained by the correlation characteristic of the pseudo noise sequence (PN-sequence); then the fractional frequency offset can be estimated grounded on the correlation of pilots. In order to improve the accuracy of the estimator, oversampling technology is adopted. The simulation shows that the good performance is gained, the results approach the Modified Cramer - Rao lower Bound (MCRLB).
引用
收藏
页码：1114 / 1118
页数：5
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