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SENSYS
2005
ACM
15 years 3 months ago
Estimating clock uncertainty for efficient duty-cycling in sensor networks
Radio duty cycling has received significant attention in sensor networking literature, particularly in the form of protocols for medium access control and topology management. Whi...
Saurabh Ganeriwal, Deepak Ganesan, Hohyun Shim, Vl...
SOUPS
2010
ACM
15 years 1 months ago
A closer look at recognition-based graphical passwords on mobile devices
Graphical password systems based on the recognition of photographs are candidates to alleviate current over-reliance on alphanumeric passwords and PINs. However, despite being bas...
Paul Dunphy, Andreas P. Heiner, N. Asokan
COMCOM
2007
125views more  COMCOM 2007»
14 years 9 months ago
Guaranteeing the network lifetime in wireless sensor networks: A MAC layer approach
Energy is the most crucial but scarce resource in wireless sensor networks (WSNs). A wealth of MAC protocols are proposed only to prolong the network lifetime for energy-efficienc...
Yongsub Nam, Taekyoung Kwon, Hojin Lee, Hakyung Ju...
JSAC
2011
219views more  JSAC 2011»
14 years 4 months ago
Detection of Small-Scale Primary Users in Cognitive Radio Networks
Abstract—In cognitive radio networks (CRNs), detecting smallscale primary devices, such as wireless microphones, is a challenging, but very important, problem that has not yet be...
Alexander W. Min, Xinyu Zhang, Kang G. Shin
IROS
2008
IEEE
184views Robotics» more  IROS 2008»
15 years 4 months ago
Morpho: A self-deformable modular robot inspired by cellular structure
— We present a modular robot design inspired by the creation of complex structures and functions in biology via deformation. Our design is based on the Tensegrity model of cellul...
Chih-Han Yu, Kristina Haller, Donald E. Ingber, Ra...