OFDMA上行链路载波频偏盲估计的迭代方法

2008 4th IEEE International Conference on Circuits and Systems for Communications Pub Date : 2008-05-26 DOI:10.1109/ICCSC.2008.98

Yi-Fan Wang, Yung-Fang Chen

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引用次数: 5

摘要

正交频分多址(OFDMA)系统中的盲载波频偏估计算法近年来得到了广泛的研究。在[1]中，盲估计方案得到了广泛的关注，但MUSIC穷列搜索的计算复杂度较高。因此，本文提出了一种迭代方案，在保持可比较性能的同时降低计算复杂度。仿真结果表明了该方案的有效性，性能接近Cramer-Rao边界(CRB)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Iterative Methods for Blind Carrier Frequency Offset Estimation in OFDMA Uplink

Blind carrier frequency offset (CFO) estimation algorithms in orthogonal frequency division multiple access (OFDMA) systems have been discussed in the literature recently. In [1], the blind estimation scheme has drawn a lot of attention, but the computational complexity caused by the MUSIC exhaustive search is high. Therefore, an iterative scheme is proposed in this paper to reduce the computational complexity while maintaining comparable performance. The simulation results demonstrate the efficacy of the proposed scheme and that the performance is near to the Cramer-Rao bound (CRB).

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2008 4th IEEE International Conference on Circuits and Systems for Communications

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