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APPROX
2004
Springer
121views Algorithms» more  APPROX 2004»
14 years 1 months ago
Small Pseudo-random Families of Matrices: Derandomizing Approximate Quantum Encryption
A quantum encryption scheme (also called private quantum channel, or state randomization protocol) is a one-time pad for quantum messages. If two parties share a classical random s...
Andris Ambainis, Adam Smith
AC
1998
Springer
14 years 6 days ago
The Search for the Holy Grail in Quantum Cryptography
Abstract. In 1982, Bennett and Brassard suggested a new way to provide privacy in long distance communications with security based on the correctness of the basic principles of qua...
Louis Salvail
WCNC
2010
IEEE
13 years 6 months ago
Codebook Design for Memory-Based Quantization of Precoder Matrix in Low-Rate Feedback MIMO Systems with Temporally Correlated Fa
—An important transmitter adaptation technique used in multiple-input multiple-output (MIMO) communication systems is precoding based on the dominant right-singular vectors of th...
Pradeepa Yahampath, Are Hjørungnes
WCNC
2008
IEEE
14 years 2 months ago
How Much Improvement Can We Get From Partially Overlapped Channels?
—Partially Overlapped Channel (POC) based design, has been identified recently as a promising technique to overcome the capacity bottleneck facing wireless engineers in various ...
Zhenhua Feng, Yaling Yang
CORR
2008
Springer
106views Education» more  CORR 2008»
13 years 8 months ago
Outer Bounds for Multiple Access Channels with Feedback using Dependence Balance
We use the idea of dependence balance to obtain a new outer bound for the capacity region of the discrete memoryless multiple-access channel with noiseless feedback (MAC-FB). We co...
Ravi Tandon, Sennur Ulukus