Modified nonlinear least square approaches to carrier frequency offset estimation in OFDM systems

被引：4
|
作者：
Ma, YG [1 ]
机构：
[1] SONY Elect S Pte Ltd, Singapore Res Lab, Singapore 117684, Singapore
来源：
IEEE COMMUNICATIONS LETTERS | 2003年 / 7卷 / 04期
关键词：
carrier frequency offset; nonlinear least square; OFDM; synchronization;
D O I：
10.1109/LCOMM.2003.811193
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
In this letter, two modified nonlinear least square (NLS) estimators for carrier frequency offset (CFO) in orthogonal frequency-division multiplexing (OFDM) systems are proposed. In the modified NLS CFO estimators, slot elements in an OFDM block symbol are weighted in terms of their received energies. Simulation results show-that the proposed new estimators outperform the original one especially in low signal-to-noise ratio range.
引用
收藏
页码：177 / 179
页数：3
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