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Improved frequency offset estimation scheme for UWB systems with cyclic delay diversity

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2 Author(s)
Young-hwan You ; uT Commun. Res. Inst., Sejong Univ., Seoul, South Korea ; Seongjoo Lee

This paper proposes an improved pilot-based algorithm for joint estimation of carrier frequency offset (CFO) and sampling frequency offset (SFO) in ultrawideband orthogonal frequency division multiplexing (UWB-OFDM) systems with cyclic delay diversity. By proper selection of cyclic delay time and a frequency band with maximum channel power, a joint estimation of CFO and SFO is derived. Via computer simulation and analysis, the proposed frequency estimator is shown to benefit from the properly selected delay parameter and frequency band.

Published in:

IEEE Transactions on Consumer Electronics  (Volume:57 ,  Issue: 3 )