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ICASSP
2009
IEEE

Blind noise variance estimation for OFDMA signals

10 years 1 months ago
Blind noise variance estimation for OFDMA signals
In this paper, we present two new noise variance estimation methods of OFDMA signals transmitted through an unknown multipath fading channel. We focus on blind estimation as it does not require any pilot sequences and is therefore applicable to context, such as cognitive radio for instance, where few prior signal knowledge is available. The two methods are respectively based on the sparse nature of OFDMA signals and on the redundancy induced by the cyclic prefix. Numerical simulations compare the two algorithms and highlight their good performance.
François-Xavier Socheleau, Dominique Pastor
Added 17 Aug 2010
Updated 17 Aug 2010
Type Conference
Year 2009
Where ICASSP
Authors François-Xavier Socheleau, Dominique Pastor, Abdeldjalil Aïssa-El-Bey, Sébastien Houcke
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