Title :
Time-variant Doppler frequency estimation and compensation for mobile OFDM systems
Author :
Cai, Jueping ; Li, Zan ; Hao, Yue ; Cai, Jueting
Author_Institution :
Sch. of Microelectronic Electron., Xidian Univ., Xi´´an, China
fDate :
5/1/2006 12:00:00 AM
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.
Keywords :
Doppler shift; OFDM modulation; Rayleigh channels; frequency estimation; mobile radio; Doppler spread; Rayleigh fading channels; mobile OFDM systems; time-variant Doppler frequency estimation; Channel estimation; Computer simulation; Dispersion; Fading; Frequency estimation; Microelectronics; OFDM modulation; Pulse modulation; Throughput; Transceivers;
Journal_Title :
Consumer Electronics, IEEE Transactions on
DOI :
10.1109/TCE.2006.1649647
