DocumentCode
2507766
Title
Pilot-Assisted OFDM Channel Estimation and ICI Cancellation for Double Selective Channels
Author
Jiang, Qi ; Speidel, Joachim ; Zhao, Chunming
Author_Institution
Univ. Stuttgart, Stuttgart
fYear
2007
fDate
26-30 Nov. 2007
Firstpage
4150
Lastpage
4154
Abstract
In this paper, we develop a two-stage hybrid channel estimation and ICI cancellation structure for OFDM systems. The double selective channels are approximated by an improved basis expansion model (BEM), which is more accurate than the conventional BEM when the normalized Doppler frequency is smaller than one. Based on this improved model, a new ICI cancellation scheme is proposed to reduce ICI impact. Simulation results show that the framework performs well.
Keywords
OFDM modulation; channel estimation; interference suppression; radiofrequency interference; Doppler frequency; ICI cancellation; basis expansion model; double selective channels; pilot-assisted OFDM channel estimation; Channel estimation; Discrete Fourier transforms; Floors; Frequency domain analysis; Interference cancellation; Mobile communication; OFDM; Sampling methods; Time domain analysis; Time factors;
fLanguage
English
Publisher
ieee
Conference_Titel
Global Telecommunications Conference, 2007. GLOBECOM '07. IEEE
Conference_Location
Washington, DC
Print_ISBN
978-1-4244-1042-2
Electronic_ISBN
978-1-4244-1043-9
Type
conf
DOI
10.1109/GLOCOM.2007.789
Filename
4411699
Link To Document