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Blind OFDM carrier frequency offset estimation by locating null subcarriers
Linköping University, The Institute of Technology. Linköping University, Department of Electrical Engineering, Electronics System.
Linköping University, Department of Electrical Engineering.
2004 (English)In: OFDM Workshop 2004,2004, 2004Conference paper (Refereed)
Abstract [en]

We present a novel algorithm for estimating the Carrier Frequency Offset (CFO) in an OFDM receiver. The algorithm is based on locating the spectral minimas within null subcarriers embedded in the spectrum. This is done by using a scaled DFT algorithm to calculate the spectrum of the OFDM symbol around the null subcarrier, followed by averaging the absolute square of the amplitude. The method is suitable for systems with continuous transmission.

Place, publisher, year, edition, pages
Keyword [en]
ofdm, synchronization, wlan
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-23138Local ID: 2538OAI: diva2:243452
Available from: 2009-10-07 Created: 2009-10-07

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Olsson, MattiasJohansson, Håkan
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The Institute of TechnologyElectronics SystemDepartment of Electrical Engineering
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ReferencesLink to record
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