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ICI Cancellation Based Channel Estimation for OFDM Systems
 

Summary: T1A.2
ICI Cancellation Based Channel Estimation for
OFDM Systems
Tevfik Y¨ucek and H¨useyin Arslan
Department of Electrical Engineering, University of South Florida
4202 E. Fowler Avenue, ENB-118, Tampa, FL, 33620
yucek@eng.usf.edu and arslan@eng.usf.edu
Abstract-- Orthogonal Frequency Division Multiplexing
(OFDM), which is a multicarrier modulation scheme, splits high
data rate information symbols into lower rate parallel data
streams and transmits this parallel information on different
orthogonal carriers. The loss of orthogonality among subcarriers
causes inter-carrier interference (ICI) which affects both
channel estimation and detection of OFDM data symbols.
Channel estimation error degrades the performance of coherent
receiver limiting capacity, data rate and performance of the
overall OFDM system. 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). Unlike conventional channel estimation

  

Source: Arslan, Hüseyin - Department of Electrical Engineering, University of South Florida

 

Collections: Engineering