Blind Maximum Doppler Frequency Estimation for OFDM Based Communication Systems

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概要

• 論文の詳細を見る

• In this letter, a novel blind maximum Doppler frequency estimation algorithm for OFDM based systems is proposed. We only utilize part of the subcarriers which are modulated by constant-envelope modulation such as QPSK. The received magnitude of these subcarriers is obtained and its power spectral density (PSD) is estimated by classic periodogram method. The maximum Doppler frequency is derived by finding the edge point of PSD. Different from the conventional PSD method, our method does not need the channel estimates, the estimation precision is also increased. Simulation results show that the performance of our method is good for a wide range of Doppler spread values.

• （社）電子情報通信学会の論文
• 2009-06-01

著者

• ZHANG Ping

  Wireless Technology Innovation (WTI) institute, Beijing University of Posts and Telecomm.

• Li Li

  Wireless Technology Innovation (wti) Institute

• Wu Ping

  Wireless Technology Innovation (wti) Institute

• Liu Ze

  Wireless Technology Innovation (wti) Institute

• WANG Yi

  Wireless Technology Innovation (WTI) Institute

• Zhang Ping

  Wireless Technology Innovation (wti) Institute

• ZHANG Ping

  Wireless Tech. Innovation Lab. (WTI), Beijing University of Posts and Telecommunications

関連論文

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• Antenna and Node Selection for Multi-Antenna Relay Networks in Correlated Channels
• Blind Maximum Doppler Frequency Estimation for OFDM Based Communication Systems
• Subband Selection and Handover of OFDMA System over Frequency Selective Channel(Wireless Communication Technologies)
• Utility Based Scheduling Algorithm for Multiple Services per User in OFDM Systems

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