Joint Carrier and Sampling Frequency Offset Estimation Based on Harmonic Retrieval

被引：0

作者：

Laourine, Amine ^{[1
]}

Stephenne, Alex ^{[1
]}

Affes, Sofiene ^{[1
]}

机构：

[1] INRS EMT, Montreal, PQ H5A 1K6, Canada

来源：

2006 IEEE 64TH VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-6 | 2006年

关键词：

D O I：

暂无

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：

The performance of an OFDM system is highly sensitive to both carrier and sampling frequency offsets. This paper proposes a new joint carrier and sampling frequency offset estimation scheme for OFDM communications suitable for a frequency-selective fading channel. The joint carrier frequency offset (CFO) and sampling frequency offset (SFO) estimation in OFDM is reformulated and resolved as a harmonic retrieval problem. Accurate estimation can be reached even when only one OFDM symbol is used, hence making this method appropriate for offsets with a high level of variability in time. Extension to block processing is presented. Moreover the presented method proved to he robust against large CFO-SFO values, a claim that can not be made for other joint estimation techniques.

引用

页码：1641 / 1645

页数：5

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