91 search results - page 2 / 19 » Blind noise variance estimation for OFDMA signals |
TIT
1998
13 years 4 months ago
1998
—A new multiuser detection scheme based on signal subspace estimation is proposed. It is shown that under this scheme, both the decorrelating detector and the linear minimummean-...
ICASSP
2010
IEEE
13 years 5 months ago
2010
IEEE
In this paper we present a noise level estimator using minimal values of the Short Time Fourier Transform of a signal embedded in a white Gaussian noise. The spectral kurtosis of ...
ICIAR
2010
Springer
13 years 8 months ago
2010
Springer
Accurate and precise estimation of the noise variance is often of key importance as an input parameter for posterior image processing tasks. In MR images, background data is well s...
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract— Since carrier frequency offset destroys user’s signal orthogonality in Orthogonal Frequency-Division Multiplexing Access (OFDMA) uplink transmission, resulting in an ...
ICASSP
2011
IEEE
12 years 8 months ago
2011
IEEE
We address the problem of blind source separation in the underdetermined and instantaneous mixture case. The proposed method is based on an algorithm developed by Aissa-El-Bey and...