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IS
2007
13 years 7 months ago
Evaluation of probabilistic queries over imprecise data in constantly-evolving environments
Sensors are often employed to monitor continuously changing entities like locations of moving objects and temperature. The sensor readings are reported to a database system, and a...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...
HYBRID
2009
Springer
14 years 2 months ago
On Event Based State Estimation
To reduce the amount of data transfer in networked control systems and wireless sensor networks, measurements are usually taken only when an event occurs, rather than at each synch...
Joris Sijs, Mircea Lazar
SENSYS
2009
ACM
14 years 2 months ago
Canopy closure estimates with GreenOrbs: sustainable sensing in the forest
Motivated by the needs of precise forest inventory and realtime surveillance for ecosystem management, in this paper we present GreenOrbs [1], a wireless sensor network system and...
Lufeng Mo, Yuan He, Yunhao Liu, Jizhong Zhao, Shao...
CCECE
2006
IEEE
13 years 11 months ago
Modelling and Emulation of Multifractal Noise in Performance Evaluation of Mesh Networks
This paper describes a model and a setup for emulating fractal and multifractal noise for the measurement and evaluation of performance of ZigBee mesh networks intended for harsh ...
Lily Woo, Witold Kinsner, Ken Ferens, J. Diamond
SUTC
2006
IEEE
14 years 1 months ago
An Authentication Service Based on Trust and Clustering in Wireless Ad Hoc Networks: Description and Security Evaluation
Security in wireless ad hoc networks is hard to achieve due to the vulnerability of its links, limited physical protection, and the absence of a centralized management point. Cons...
Edith C. H. Ngai, Michael R. Lyu