Title :
Energy and Surveillance Quality Sensitive Scheduling Scheme for Composite Event Detection in Wireless Sensor Networks
Author :
Jia Xu ; Yu Gu ; Fang-Fang Li ; Yan-Fei Lv ; Yu, Gu
Author_Institution :
Inf. Sci. & Eng. Sch., Northeastern Univ., Shenyang
Abstract :
Event surveillance especially the composite event surveillance is a crucial task for wireless sensor networks applications. However, sensor nodes are vulnerable by harsh environmental conditions, which cause sensor nodes fallibility and affect the quality of surveillance. In order to improve the surveillance quality of composite event, one straightforward method is to increase the number of wake-up nodes in event surveillance, but this result in an immense consumption of precious energy. This paper focuses on improving surveillance quality of composite event in an energy-efficient manner. We use a three-layer statistically reliability model (StaR) to quantify the surveillance quality of composite event. Given the detection quality parameter and a k-out-of-n voting strategy, StaR-based scheduling scheme can dynamically schedule the nodes´ states within a composite event detection group, i.e., inactivate low detection reliability node and activate high detection reliability node, to satisfy the user-defined composite event detection quality and realize energy conservation meanwhile.
Keywords :
scheduling; statistical analysis; surveillance; telecommunication network reliability; wireless sensor networks; composite event detection; energy conservation; energy consumption; statistically reliability model; surveillance quality sensitive scheduling scheme; wireless sensor network; Dynamic scheduling; Energy conservation; Energy consumption; Event detection; Information science; Network topology; Surveillance; Temperature sensors; Wireless communication; Wireless sensor networks;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.828