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Volume 30 Issue 10
Jan.  2011
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Zhao Dan, Yu Quan, Wang Jian-Xin. A Combined Symbol Timing and Frequency Synchronization and Channel Estimation Technique Based on Detected Data for OFDM Systems[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2446-2449. doi: 10.3724/SP.J.1146.2007.00443
Citation: Zhao Dan, Yu Quan, Wang Jian-Xin. A Combined Symbol Timing and Frequency Synchronization and Channel Estimation Technique Based on Detected Data for OFDM Systems[J]. Journal of Electronics & Information Technology, 2008, 30(10): 2446-2449. doi: 10.3724/SP.J.1146.2007.00443

A Combined Symbol Timing and Frequency Synchronization and Channel Estimation Technique Based on Detected Data for OFDM Systems

doi: 10.3724/SP.J.1146.2007.00443
  • Received Date: 2007-03-26
  • Rev Recd Date: 2007-08-02
  • Publish Date: 2008-10-19
  • A new combined symbol timing and frequency synchronization and channel estimation technique by using the detected data is developed for OFDM systems. Open-loop and closed-loop schemes are described in details. The synchronization information contained in the channel estimated results which is gained by LS channel estimation method is extracted based on the Maximum Likelihood (ML) criterion for synchronization estimation,and then the estimated results of symbol timing and frequency are used to correct the initial estimated channel and make it be more equal to the real channel more. Select appropriate length of the block and the value of feedback factors, the algorithm can be used to tracking the time variable channel.
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