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ICHIT
2009
Springer
14 years 3 months ago
Adaptive PSAM in SIMO systems with imperfect CSI in Rayleigh fading channels
In this paper we provide an adaptive modulation approach that uses adaptive pilot symbols which both pilot spacing and power allocation on pilot symbols are optimized in single in...
Reza Barazideh, Babak Seyfe
CCS
2008
ACM
13 years 11 months ago
Avoiding timing channels in fixed-priority schedulers
A practically feasible modification to fixed-priority schedulers allows to avoid timing channels despite threads having access to precise clocks. This modification is rather simpl...
Marcus Völp, Claude-Joachim Hamann, Hermann H...
TIFS
2008
145views more  TIFS 2008»
13 years 9 months ago
Physical-Layer Authentication
Authentication is the process where claims of identity are verified. Most mechanisms of authentication (e.g., digital signatures and certificates) exist above the physical layer, t...
Paul L. Yu, John S. Baras, Brian M. Sadler
INFOCOM
2010
IEEE
13 years 7 months ago
Coupled 802.11 Flows in Urban Channels: Model and Experimental Evaluation
Abstract—Contending flows in multi-hop 802.11 wireless networks compete with two fundamental asymmetries: (i) channel asymmetry, in which one flow has a stronger signal, potent...
Joseph Camp, Ehsan Aryafar, Edward W. Knightly
CORR
2007
Springer
156views Education» more  CORR 2007»
13 years 9 months ago
Capacity Gain from Two-Transmitter and Two-Receiver Cooperation
Abstract—Capacity improvement from transmitter and receiver cooperation is investigated in a two-transmitter, two-receiver network with phase fading and full channel state inform...
Chris T. K. Ng, Nihar Jindal, Andrea J. Goldsmith,...