115 search results - page 3 / 23 » A maximum entropy approach to OFDM channel estimation |
PIMRC
2008
IEEE
14 years 2 months ago
2008
IEEE
— One of the main task to be done by a cognitive receiver is to sense its spectral environment in order to distinguish surrounding systems from each others. Actually most systems...
GLOBECOM
2006
IEEE
14 years 1 months ago
2006
IEEE
— This paper presents non-linear precoding design in closed-loop multiple-input multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) over spatiallycorrelated,...
GLOBECOM
2008
IEEE
13 years 8 months ago
2008
IEEE
Abstract— This paper discusses channel estimation in a cooperative orthogonal frequency-division multiplexing (OFDM) network in the presence of frequency offsets. Both the amplif...
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
— Current OFDM systems assume the channel is not time varying within one OFDM frame, and use channel estimates obtained from preamble or pilots for data symbols within the same f...
ACL
1998
13 years 9 months ago
1998
Maximum entropy framework proved to be expressive and powerful for the statistical language modelling, but it suffers from the computational expensiveness of the model building. T...