An improved residual frequency offset estimation scheme for OFDM based WLAN systems

Authors:
Benudhar Sahu;Saswat Chakrabarti;S. L. Maskara
Affiliations:
Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, India;G.S. Sanyal School of Telecommunications, Indian Institute of Technology, Kharagpur, India;Jaypee Institute of Information Technology, Noida, India
Venue:
Digital Signal Processing
Year:
2010

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Abstract

Coarse frequency offset estimate and tracking of residual frequency offset are two crucial stages for frequency synchronization in OFDM based WLAN systems. An improved frequency offset estimation scheme is proposed for tracking residual offset. The estimation scheme is dependent on the position of an OFDM symbol in a frame.