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IH
2001
Springer
14 years 1 days ago
Robust Covert Communication over a Public Audio Channel Using Spread Spectrum
We present a set of watermarking techniques for effective covert communication over an audio signal carrier. Watermark robustness is enabled using: (i) redundant spread-spectrum fo...
Darko Kirovski, Henrique S. Malvar
GLOBECOM
2007
IEEE
14 years 1 months ago
Cross-Layer Optimization for Video Communication Over AWGN Channel
In this paper, cross-layer optimization approach is applied from video coding to the physical layer through Media Access Control (MAC) layer. We mainly focus on resource allocatio...
Cheolhong An, Truong Q. Nguyen
ICC
2008
IEEE
142views Communications» more  ICC 2008»
14 years 2 months ago
Multiuser MIMO Downlink with Limited Feedback Using Transmit-Beam Matching
— The multiuser multiple-input multiple-output (MIMO) broadcast channel uses multiple antennas at the transmitter to simultaneously deliver information to multiple users. Despite...
Tae-Hyun Kim, Robert W. Heath Jr., Sunghyun Choi
CORR
2008
Springer
97views Education» more  CORR 2008»
13 years 7 months ago
Spreading Signals in the Wideband Limit
Abstract-- Wideband communications are asymptotically impossible with signals that are spread over a very wide band and are transmitted over a multipath channel unknown ahead of ti...
Elchanan Zwecher, Dana Porrat
MUE
2007
IEEE
120views Multimedia» more  MUE 2007»
14 years 1 months ago
Design and Implementation of Secure Communication Channels over UPnP Networks
The scale of smart living spaces can be varied from small, e.g. a household, to large, e.g. a building or a campus, scales. As the scale of the space increases, we can expect that...
Jiunn-Jye Lee, Chun-Ying Huang, Li-Yuan Lee, Chin-...