126 search results - page 6 / 26 » A Semiblind Channel Estimation Approach for MIMO-OFDM System... |
ISW
2005
Springer
14 years 26 days ago
2005
Springer
In this paper, we examine general mechanisms that a covert channel may exploit and derive new minimum requirements for setting up a covert channel. We also propose a new classifica...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
In this work, a Bayesian framework for OFDM channel estimation is proposed. Using the maximum entropy principle to exploit prior system information at the receiver, we successively...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
— In this paper, we develop low-complexity iterative channel estimation techniques for emerging IDMA systems. The channel estimators make use of pilots as well as soft decoded da...
ICC
2007
IEEE
14 years 1 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...
TWC
2008
13 years 7 months ago
2008
Abstract--Assuming imperfect channel estimation, we propose an improved detector for orthogonal frequency-division multiplexing (OFDM) systems over a frequency-selective fading cha...