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TMM
2002
94views more  TMM 2002»
13 years 7 months ago
A jointly optimal fractal/DCT compression scheme
In this paper a hybrid fractal and Discrete Cosine transform (DCT) coder is developed. Drawing on the ability of DCT to remove inter-pixel redundancies and on the ability of fracta...
Gerry Melnikov, Aggelos K. Katsaggelos
TIP
1998
240views more  TIP 1998»
13 years 7 months ago
DCT-based motion estimation
—We propose novel discrete cosine transform (DCT) pseudophase techniques to estimate shift/delay between two onedimensional (1-D) signals directly from their DCT coefficients by...
Ut-Va Koc, K. J. Ray Liu
ICASSP
2008
IEEE
14 years 1 months ago
Discrete rate spectral efficiency for adaptive MIMO systems
Adaptive modulation scheme has been widely used in multipleinput multiple-output (MIMO) systems to enhance spectral efficiency while maintaining bit-error rate (BER) under a targ...
Jinliang Huang, Svante Signell
ICASSP
2008
IEEE
14 years 1 months ago
Impact of channel estimation error on performance of adaptive MIMO systems
Adaptive modulation scheme has been widely used in multipleinput multiple-output (MIMO) systems to enhance the spectral efficiency while maintaining the bit-error-rate (BER) unde...
Jinliang Huang, Svante Signell
TWC
2010
13 years 2 months ago
Maximum-likelihood noncoherent OSTBC detection with polynomial complexity
Abstract--We prove that maximum-likelihood (ML) noncoherent sequence detection of orthogonal space-time block coded signals can always be performed in polynomial time with respect ...
Dimitris S. Papailiopoulos, George N. Karystinos