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» Detecting covert timing channels: an entropy-based approach
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SAINT
2008
IEEE
14 years 1 months ago
Dynamic Relay Node Placement in Wireless Sensor Networks
In this paper we present an online algorithm that attacks the problem of placing relay nodes in regions where high localized congestion is detected. Congestion refers to the netwo...
Jorge Mena, Vana Kalogeraki
ICC
2008
IEEE
14 years 1 months ago
A Two-Stage Sensing Technique for Dynamic Spectrum Access
—Dynamic spectrum access (DSA) is a promising approach for mitigating spectrum scarcity. Underlying DSA is the need for fast and reliable spectrum sensing over a potentially larg...
Ling Luo, Sumit Roy
ACSAC
2008
IEEE
14 years 1 months ago
New Side Channels Targeted at Passwords
Side channels are typically viewed as attacks that leak cryptographic keys during cryptographic algorithm processing, by observation of system side effects. In this paper, we pres...
Albert Tannous, Jonathan T. Trostle, Mohamed Hassa...
GLOBECOM
2007
IEEE
14 years 1 months ago
A Novel OFDMA Ranging Method Exploiting Multiuser Diversity
This paper addresses initial ranging (uplink synchronization and power control) for TDD OFDMA systems. Exploiting the channel knowledge from the downlink channel together with ini...
Jianqiang Zeng, Hlaing Minn
ESANN
2007
13 years 8 months ago
Bat echolocation modelling using spike kernels with Support Vector Regression
Abstract. From the echoes of their vocalisations bats extract information about the positions of reflectors. To gain an understanding of how target position is translated into neu...
Bertrand Fontaine, Herbert Peremans, Benjamin Schr...