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GLOBECOM
2008
IEEE
15 years 3 months ago
User Selection for Multiple-Antenna Broadcast Channel with Zero-Forcing Beamforming
Abstract—This paper investigates the zero-forcing (ZF) beamforming transmit strategy in the multiple-antenna multiuser downlink systems. We consider the case of mobile users equi...
Saeed Kaviani, Witold A. Krzymien
SPC
2005
Springer
15 years 8 months ago
Supporting Dynamically Changing Authorizations in Pervasive Communication Systems
In pervasive computing environments, changes in context may trigger changes in an individual’s access permissions. We contend that existing access control frameworks do not provi...
Adam J. Lee, Jodie P. Boyer, Chris Drexelius, Pras...
VLSISP
2002
103views more  VLSISP 2002»
15 years 2 months ago
A New Class of Efficient Block-Iterative Interference Cancellation Techniques for Digital Communication Receivers
A new and efficient class of nonlinear receivers is introduced for digital communication systems. These "iterated-decision" receivers use optimized multipass algorithms t...
Albert M. Chan, Gregory W. Wornell
120
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MMSEC
2004
ACM
137views Multimedia» more  MMSEC 2004»
15 years 8 months ago
Perturbed quantization steganography with wet paper codes
In this paper, we introduce a new approach to passive-warden steganography in which the sender embeds the secret message into a certain subset of the cover object without having t...
Jessica J. Fridrich, Miroslav Goljan, David Soukal
GLOBECOM
2009
IEEE
15 years 9 months ago
Asymptotically Optimal Joint Source-Channel Coding with Minimal Delay
—We present and analyze a joint source-channel coding strategy for the transmission of a Gaussian source across a Gaussian channel in n channel uses per source symbol. Among all ...
Marius Kleiner, Bixio Rimoldi