ICI Cancellation Based Channel Estimation for OFDM Systems

Tevfik YUCEK  Huseyin ARSLAN  

IEICE TRANSACTIONS on Communications   Vol.E88-B   No.5   pp.2200-2201
Publication Date: 2005/05/01
Online ISSN: 
DOI: 10.1093/ietcom/e88-b.5.2200
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Wireless Communication Technologies
OFDM,  frequency offset,  channel estimation,  

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This paper proposes a novel frequency-domain channel estimator which mitigates the effects of ICI by jointly finding the frequency offset and channel frequency response (CFR). A binary search algorithm is used to find the present frequency offset and CFR jointly. The variance of the jointly estimated frequency offset is found to be very close to the Cràmer-Rao lower bound.