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TWC
2010
14 years 7 months ago
Reduced-Complexity Joint Baseband Compensation of Phase Noise and I/Q Imbalance for MIMO-OFDM Systems
The maximum likelihood estimate of the impulse response of a frequency-selective channel in the presence of phase noise and I/Q imbalance is derived. The complexity of the joint es...
Rabie Rabiei, Won Namgoong, Naofal Al-Dhahir
ICPR
2008
IEEE
15 years 6 months ago
Analytical method for MGRF Potts model parameter estimation
This paper proposes a new analytical method for estimating parameters of a homogeneous isotropic Potts model with an asymmetric Gibbs potential function. The model is generalized ...
Asem M. Ali, Aly A. Farag, Georgy L. Gimel'farb
ICC
2000
IEEE
103views Communications» more  ICC 2000»
15 years 4 months ago
Frame Synchronization for Noncoherent Demodulation on Flat Fading Channels
Abstract – In this work we consider the problem of locating a known periodically embedded synchronization pattern in random data, which is subject to flat fading and additive wh...
Arkady Kopansky, Maja Bystrom
TIFS
2008
194views more  TIFS 2008»
15 years 10 days ago
Detection of Double-Compression in JPEG Images for Applications in Steganography
This paper presents a method for detection of double JPEG compression and a maximum likelihood estimator of the primary quality factor. These methods are essential for construction...
Tomás Pevný, Jessica J. Fridrich
FPL
2009
Springer
79views Hardware» more  FPL 2009»
15 years 5 months ago
A reconfigurable architecture for the Phylogenetic Likelihood Function
As FPGA devices become larger, more coarse-grain modules coupled with large scale reconfigurable fabric become available, thus enabling new classes of applications to run effici...
Nikolaos Alachiotis, Alexandros Stamatakis, Euripi...