Title :
Time-variant doppler frequency estimation and compensation for mobile OFDM systems
Author :
Li, Zan ; Cai, Jueting ; Shen, Jian
Author_Institution :
State Key Lab. of Integrated Service Networks, Xidian Univ., Xi´´an
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 developments
Keywords :
Doppler shift; OFDM modulation; Rayleigh channels; frequency estimation; mobile radio; time-varying channels; Doppler spread; Rayleigh fading channels; mobile OFDM systems; time-variant Doppler frequency estimation; transceivers; Dispersion; Fading; Frequency estimation; Intserv networks; Laboratories; OFDM modulation; Pulse modulation; Systems engineering and theory; Throughput; Transceivers;
Conference_Titel :
Wireless Communications and Networking Conference, 2006. WCNC 2006. IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
1-4244-0269-7
Electronic_ISBN :
1525-3511
DOI :
10.1109/WCNC.2006.1683613
