Zhang has proposed the maximum-likelihood (ML) integer frequency offset (IFO) estimator for orthogonal frequency-division multiplexing (OFDM) systems. However, his solution to multi-path channels is quite limited. We further investigate the problem and propose an improved IFO estimator to solve the problem in multi-path channels.
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Xi An Jiao Tong Univ, Dept Informat & Commun Engn, Xian 710049, Peoples R ChinaXi An Jiao Tong Univ, Dept Informat & Commun Engn, Xian 710049, Peoples R China
Chen, Zhigang
Zhang, Taiyi
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机构:Xi An Jiao Tong Univ, Dept Informat & Commun Engn, Xian 710049, Peoples R China
Zhang, Taiyi
Zhou, Yatong
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机构:Xi An Jiao Tong Univ, Dept Informat & Commun Engn, Xian 710049, Peoples R China
Zhou, Yatong
Liu, Feng
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机构:Xi An Jiao Tong Univ, Dept Informat & Commun Engn, Xian 710049, Peoples R China