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JSAC
2006
78views more  JSAC 2006»
13 years 7 months ago
On the optimality of multiantenna broadcast scheduling using zero-forcing beamforming
Abstract--Although the capacity of multiple-input/multipleoutput (MIMO) broadcast channels (BCs) can be achieved by dirty paper coding (DPC), it is difficult to implement in practi...
Taesang Yoo, Andrea J. Goldsmith
CISS
2010
IEEE
12 years 11 months ago
On Gaussian MIMO compound wiretap channels
— We study the two-user one-eavesdropper discrete memoryless compound wiretap channel, where the transmitter sends a common confidential message to both users, which needs to be...
Ersen Ekrem, Sennur Ulukus
MMSEC
2005
ACM
114views Multimedia» more  MMSEC 2005»
14 years 1 months ago
Watermarking of MPEG-2 video in compressed domain using VLC mapping
In this work we propose a new algorithm for fragile, high capacity yet file-size preserving watermarking of MPEG-2 streams. Watermarking is done entirely in the compressed domain,...
Bijan G. Mobasseri, Michael P. Marcinak
CORR
2011
Springer
201views Education» more  CORR 2011»
12 years 11 months ago
An Achievable Rate Region for the Broadcast Channel with Feedback
A single-letter achievable rate region is proposed for the two-receiver discrete memoryless broadcast channel with noiseless or noisy feedback. The coding strategy involves block-...
Ramji Venkataramanan, S. Sandeep Pradhan
INFOCOM
2007
IEEE
14 years 2 months ago
Many-to-Many Communication: A New Approach for Collaboration in MANETs
—We introduce a collaboration-driven approach to the sharing of the available bandwidth in wireless ad hoc networks, which we call many-to-many cooperation, that allows concurren...
Renato M. de Moraes, Hamid R. Sadjadpour, J. J. Ga...