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» Propagation Redundancy for Permutation Channels
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IH
2001
Springer
13 years 9 months 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
TIP
2002
126views more  TIP 2002»
13 years 4 months ago
Multiframe error concealment for MPEG-coded video delivery over error-prone networks
Compressed video sequences are very vulnerable to channel disturbances when they are transmitted through an unreliable medium such as a wireless channel. Transmission errors not on...
Yen-Chi Lee, Yucel Altunbasak, Russell M. Merserea...
ICCAD
2002
IEEE
189views Hardware» more  ICCAD 2002»
14 years 1 months ago
Reversible logic circuit synthesis
Reversible, or information-lossless, circuits have applications in digital signal processing, communication, computer graphics and cryptography. They are also a fundamental requir...
Vivek V. Shende, Aditya K. Prasad, Igor L. Markov,...
CORR
2010
Springer
261views Education» more  CORR 2010»
13 years 2 months ago
Analysis of Quasi-Cyclic LDPC codes under ML decoding over the erasure channel
In this paper, we show that over the binary erasure channel, Quasi-Cyclic LDPC codes can efficiently accommodate the hybrid iterative/ML decoding. We demonstrate that the quasicycl...
Mathieu Cunche, Valentin Savin, Vincent Roca
TCOM
2008
136views more  TCOM 2008»
13 years 4 months ago
Joint source-channel codes based on irregular turbo codes and variable length codes
Abstract--Variable length codes (VLCs), used in data compression, are very sensitive to error propagation in the presence of noisy channels. To address this problem, several joint ...
Xavier Jaspar, Luc Vandendorpe