Time-variant Doppler frequency estimation and compensation for mobile OFDM systems

Authors:
Jueping Cai;Zan Li;Yue Hao;Jeuting Cai
Affiliations:
Sch. of Microelectronic Electron., Xidian Univ., Xi'an, China;-;-;-
Venue:
IEEE Transactions on Consumer Electronics
Year:
2006

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Performance analysis of QAM-modulation parameters on FFT-OFDM system over Doppler frequency fading channels

International Journal of Information and Communication Technology

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Abstract

In mobile OFDM communication systems, Doppler spread leads to the loss of orthogonality between the sub-carriers, limiting the achievable throughput of the moving transceivers. In this paper, the effect of Doppler spread in Rayleigh fading channels is investigated, and a method of time-variant Doppler frequency estimation and compensation is proposed for mobile OFDM systems. Computer simulation results are included to support our development.