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Correlation-based frequency offset estimation in MIMO system

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2 Author(s)
Yao Yao ; Dept. of Electr. & Electron. Eng., Hong Kong Univ., China ; Tung-Sang Ng

The paper addresses the problem of frequency offset estimation in the presence of unknown channel information for a MIMO system. An efficient pilot symbol-aided algorithm for frequency offset estimation is proposed. Taking advantage of the orthogonal property of Walsh codes, a second-order estimator, which can substantially mitigate the MAI (multi-antenna interference), is proposed. We also derive the Cramer-Rao bound for the MIMO system; the numerical results are compared with simulation results to illustrate the efficiency of the novel algorithm.

Published in:

Vehicular Technology Conference, 2003. VTC 2003-Fall. 2003 IEEE 58th  (Volume:1 )

Date of Conference:

6-9 Oct. 2003

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