Joint synchronization algorithm for FRFT-OFDM system

doi:10.7523/j.issn.2095-6134.2012.5.020

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›› 2012, Vol. 29 ›› Issue (5): 714-719.DOI: 10.7523/j.issn.2095-6134.2012.5.020

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Joint synchronization algorithm for FRFT-OFDM system

SHEN Yong, DA Xin-Yu, ZENG Wu

Telecommunication Engineering Institute, Air Force Engineering University, Xi'an 710077, China

Received:2011-06-13 Revised:2011-09-20 Online:2012-09-15

Abstract

Abstract: Synchronization for the OFDM system is studied. A synchronization algorithm with low complexity for joint carrier frequency, sampling frequency, and symbol timing is proposed based on the property of LFM convergent energy in fractional Fourier domain. The three kinds of offset are estimated by locating symmetry point caused by LFM inserted in OFDM symbol. The simulation results show that the performance of the proposed algorithm is improved when the LFM length increases and it is better than those of other similar algorithms.

Key words: OFDM, FRFT, CFO, SFO, symbol timing

CLC Number:

TN929.5

SHEN Yong, DA Xin-Yu, ZENG Wu. Joint synchronization algorithm for FRFT-OFDM system[J]. , 2012, 29(5): 714-719.

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Joint synchronization algorithm for FRFT-OFDM system

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