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- W2367060643 abstract "Orthogonal frequency division multiplexing(OFDM) technology is an important modulation technology of the power line communication(PLC), but one of the main shortcomings of an OFDM system is its high sensitivity to the carrier frequency offset(CFO). Therefore, CFO estimation is one of the key technologies of an OFDM system. A maximuma-posteriori(MAP) criterion algorithm for integer frequency offset(IFO) estimation was proposed in this paper, and the cross-correlation based IFO estimation algorithm with Chu sequence was improved. The proposed algorithm took the data symbols around training sequence and the noise into consideration on the basis of the original algorithm, and a correction term was added in the algorithm. The algorithm can further reduce the error detection probability of the IFO estimation and improve the estimation accuracy. The simulation results show that, compared with the original cross-correlation algorithm, the proposed algorithm has a lower error detection probability of the IFO estimation in the general communication channels and the power line communication channels, thus possesses a good application prospect in the OFDM system of power line communication channels." @default.
- W2367060643 created "2016-06-24" @default.
- W2367060643 creator A5049115444 @default.
- W2367060643 date "2014-01-01" @default.
- W2367060643 modified "2023-09-24" @default.
- W2367060643 title "Integer Frequency Offset Estimation Algorithm of Orthogonal Frequency Division Multiplexing System in Power Line Communication Channels" @default.
- W2367060643 hasPublicationYear "2014" @default.
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