Sciweavers

6404 search results - page 394 / 1281
» Blocks
Sort
View
CORR
2010
Springer
107views Education» more  CORR 2010»
15 years 1 months ago
One-Shot Capacity of Discrete Channels
Shannon defined channel capacity as the highest rate at which there exists a sequence of codes of block length n such that the error probability goes to zero as n goes to infinity....
Rui A. Costa, Michael Langberg, João Barros
TSP
2011
125views more  TSP 2011»
15 years 1 months ago
Weight Adjusted Tensor Method for Blind Separation of Underdetermined Mixtures of Nonstationary Sources
—In this paper, a novel algorithm to blindly separate an instantaneous linear underdetermined mixture of nonstationary sources is proposed. It means that the number of sources ex...
Petr Tichavský, Zbynek Koldovský
JIPS
2010
273views more  JIPS 2010»
15 years 1 months ago
Hiding Secret Data in an Image Using Codeword Imitation
This paper proposes a novel reversible data hiding scheme based on a Vector Quantization (VQ) codebook. The proposed scheme uses the principle component analysis (PCA) algorithm to...
Zhi-Hui Wang, Chin-Chen Chang, Pei-Yu Tsai
ACNS
2011
Springer
231views Cryptology» more  ACNS 2011»
14 years 10 months ago
Cold Boot Key Recovery by Solving Polynomial Systems with Noise
A method for extracting cryptographic key material from DRAM used in modern computers has been recently proposed in [9]; the technique was called Cold Boot attacks. When considerin...
Martin Albrecht, Carlos Cid
CORR
2011
Springer
201views Education» more  CORR 2011»
14 years 10 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