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Joint Carrier Fequency Synchronization and Channel Estimation for OFDM Systems Via the EM Algorithm
Cited 40 time in
Web of Science
Cited 60 time in Scopus
- Authors
- Issue Date
- 2006-01
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
IEEE Vehicular Technology Society
- Citation
- IEEE Transactions on Vehicular Technology, vol. 55, no. 1, pp. 167-172, Jan 2006
- Keywords
- channel estimation ; expectation–maximization (EM) ; frequency synchronization ; orthogonal frequency-division multiplexing (OFDM)
- Abstract
- A joint carrier frequency synchronization and channel estimation scheme is proposed for orthogonal frequencydivision multiplexing (OFDM) system. In the proposed scheme, carrier frequency synchronization and channel estimation are performed iteratively via the expectation–maximization (EM) algorithm using an OFDM preamble symbol. Moreover, we analytically investigate the effect of frequency offset error on the mean square error (MSE) performance of channel estimator. Simulation results present that the proposed scheme achieves almost ideal performance for both channel and frequency offset estimation.
- ISSN
- 0018-9545
- Language
- English
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