Multi-Carrier Digital Communications: Theory and Applications of Ofdm
Multi-Carrier Digital Communications: Theory and Applications of Ofdm
Wireless Communications: Principles and Practice
Wireless Communications: Principles and Practice
ML estimation of time and frequency offset in OFDM systems
IEEE Transactions on Signal Processing
On Bounds and Algorithms for Frequency Synchronization for Collaborative Communication Systems
IEEE Transactions on Signal Processing - Part I
Ml joint CFO and channel estimation in OFDM systems with timing ambiguity
IEEE Transactions on Wireless Communications
CFO estimation in OFDM systems under timing and channel length uncertainties with model averaging
IEEE Transactions on Wireless Communications
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This paper addresses the problem of carrier frequency offset (CFO) estimation in orthogonal frequency division multiplexing (OFDM) systems using Bayesian method. Depending on the availability of the noise variance, two general CFO estimators are derived. Furthermore, the two general maximum a posteriori (MAP) estimators are developed into several special cases based on different degrees of prior information on parameters. The relationships between the proposed estimators and existing estimators are comprehensively investigated. Finally, numerical results demonstrate the effects of employing different prior information on the estimation performances.