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CORR
2011
Springer
224views Education» more  CORR 2011»
13 years 1 months ago
A Broadcast Approach To Secret Key Generation Over Slow Fading Channels
Abstract—A secret-key generation scheme based on a layered broadcasting strategy is introduced for slow-fading channels. In the model considered, Alice wants to share a key with ...
Xiaojun Tang, Ruoheng Liu, Predrag Spasojevic, H. ...
TIT
2010
110views Education» more  TIT 2010»
13 years 21 days ago
Secure communications with insecure feedback: breaking the high-SNR ceiling
A multiple-antenna Gaussian wiretap channel in which the number of antennas at the source is not greater than that at the eavesdropper is considered. Without feedback, the secrecy...
Tùng T. Kim, H. Vincent Poor
MOBIHOC
2010
ACM
13 years 3 months ago
Security-capacity trade-off in large wireless networks using keyless secrecy
We investigate the scalability of a class of algorithms that exploit the dynamics of wireless fading channels to achieve secret communication in a large wireless network of n rando...
Sudarshan Vasudevan, Dennis Goeckel, Donald F. Tow...
ICASSP
2011
IEEE
12 years 9 months ago
A robust artificial noise aided transmit design for MISO secrecy
This paper considers an artificial noise (AN) aided secrecy rate maximization (SRM) problem for a multi-input single-output (MISO) channel overheard by multiple single-antenna ea...
Qiang Li, Wing-Kin Ma
CORR
2010
Springer
89views Education» more  CORR 2010»
13 years 6 months ago
The capacity region of a class of broadcast channels with a sequence of less noisy receivers
The capacity region of a broadcast channel consisting of k-receivers that lie in a less noisy sequence is an open problem, when k 3. We prove that superposition coding is indeed ...
Chandra Nair, Zizhou Vincent Wang