Comment and further results on paper "Carrier Frequency Recovery Technique in OFDM systems"

Authors:
Jingyu Hua;Zhijiang Xu;Xiaojian Xu;Xiaohu You
Affiliations:
College of Inf. Eng., Zhejiang University of Technology, Hangzhou, China 310032 and National Mobile Communication Research Laboratory, Southeast University, Nanjing, China;College of Inf. Eng., Zhejiang University of Technology, Hangzhou, China 310032;Institute of Inf. Eng., University of Inf. Eng., Zhengzhou, China;National Mobile Communication Research Laboratory, Southeast University, Nanjing, China
Venue:
Wireless Personal Communications: An International Journal
Year:
2007

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Carrier Frequency Recovery Technique in OFDM Systems

Wireless Personal Communications: An International Journal

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Abstract

This comment points out some inaccurate formulae, and shows some irrelevant comparison of different estimators. Moreover, the correct formulae are provided and the modification to the fractional frequency offset (FFO) estimator is indicated. On the other hand, Our analysis have shown that the integer frequency offset (IFO) estimator of Ai is of serious theoretic problem.