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[Discuss-gnuradio] CFO in OFDM

From: David Halls
Subject: [Discuss-gnuradio] CFO in OFDM
Date: Wed, 29 Oct 2014 12:34:15 +0000

Dear all,


I am suffering from issues related to residual CFO error manifesting itself as a slight rotation over time. This can be partially corrected in the FD using tracking pilots which I have implemented but there is still a slight problem which may be caused by ICI.


In the OFDM example code, how is the value for the Frequency Mod sensitivity (-2/FFT_len) derived? Has anyone implemented other CFO estimation blocks for OFDM systems, other than the Schmidl and Cox technique?







David Halls Ph.D.

Research Engineer

Toshiba Research Europe Limited

32 Queen Square, Bristol, BS1 4ND, UK

Tel: +44 (0) 117 906 0790


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