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ICI Cancellation Based Channel Estimation for OFDM Systems
Tevfik YUCEK Huseyin ARSLAN
IEICE TRANSACTIONS on Communications
Publication Date: 2005/05/01
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.