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ICC
2007
IEEE

A Factor Graph Approach to the Iterative Detection of OFDM Signals in the Presence of Carrier Frequency Offset and Phase Noise

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A Factor Graph Approach to the Iterative Detection of OFDM Signals in the Presence of Carrier Frequency Offset and Phase Noise
—This paper provides a new iterative solution to the problem of the joint estimation of phase noise and residual carrier frequency offset in an orthogonal frequency division multiplexing transmission over a multipath fading channel, in the presence of known data and channel impulse response. The proposed technique results from the application of the sumproduct algorithm to a factor graph representing the joint a posteriori probability density function of the carrier frequency offset and the phase noise vector affecting a given symbol. It is also shown that this estimation algorithm can be exploited in a coherent receiver for both data-aided training and decisiondirected tracking. Its performance is assessed by computer simulations and is compared with that provided by other strategies.
Filippo Zuccardi Merli, Giorgio Matteo Vitetta
Added 02 Jun 2010
Updated 02 Jun 2010
Type Conference
Year 2007
Where ICC
Authors Filippo Zuccardi Merli, Giorgio Matteo Vitetta
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