Title :
A Novel Channel Estimation and ICI Cancelation for Mobile OFDM Systems
Author :
Hong, Zhihong ; Thibault, Louis
Author_Institution :
Commun. Res. Centre Canada, Ottawa
Abstract :
A novel iterative channel estimation and intercarrier interference (ICI) cancellation scheme is proposed in this paper for mobile OFDM systems. The proposed scheme uses decision feedback to estimate both channel gain and the ICI gains, the latter being the multiplicative gain applied to the adjacent subcarriers. Thus the receiver can perform equalization and ICI cancelation in an iterative fashion. Computer simulations show that significant improvement can be obtained by the proposed scheme in fast fading channels.
Keywords :
OFDM modulation; channel estimation; equalisers; fading channels; feedback; interference suppression; iterative methods; mobile radio; ICI cancellation; channel equalization; decision feedback; fading channel; intercarrier interference; iterative channel estimation; mobile OFDM system; AWGN; Additive white noise; Availability; Channel estimation; Fading; Feedback; Mobile communication; OFDM; Performance gain; Throughput;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on
Conference_Location :
Athens
Print_ISBN :
978-1-4244-1144-3
Electronic_ISBN :
978-1-4244-1144-3
DOI :
10.1109/PIMRC.2007.4394262
