Blind frequency tracking based on time-domain spreading for MB-OFDM-UWB systems

被引：0
|
作者：
Ge, Li-Jun [1 ]
Wu, Hong [2 ]
机构：
[1] School of Electronics and Information Engineering, Tianjin Polytechnic University
[2] College of Information Technical Science, Nankai University
来源：
Tongxin Xuebao/Journal on Communications | 2013年 / 34卷 / 04期
关键词：
Carrier frequency offset; MB-OFDM; Synchronization; Time-domain spreading; UWB;
D O I：
10.3969/j.issn.1000-436x.2013.04.016
中图分类号：
学科分类号：
摘要：
A blind carrier frequency offset (CFO) tracking algorithm based on time-domain spreading (TDS) was proposed for multiband orthogonal frequency division multiplexing ultra wide band systems. The scheme uses data symbols and the mapped TDS ones to develop time and frequency-domain estimators and tracking loops respectively. Simulation results indicate that the proposed scheme has a better performance in tracking accuracy than pilots-aided ones. Under the SNR of 10dB, the mean square root errors of the residual CFO reach 2 × 10-4, and the bit error rate of the system is 10-6 of magnitude.
引用
收藏
页码：138 / 143
页数：5
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