805 search results - page 71 / 161 » Spatial queries in sensor networks |
TKDE
2012
11 years 11 months ago
2012
—Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of som...
TSMC
2010
13 years 3 months ago
2010
-- This paper presents an artificial ant-colony approach to distributed sensor wakeup control in wireless sensor networks (WSN) to accomplish the joint task of surveillance and tar...
INTERSENSE
2006
ACM
14 years 2 months ago
2006
ACM
Wireless sensor networks are expected to be deployed in harsh environments characterized by extremely poor and fluctuating channel conditions. With the generally adopted single-s...
GLOBECOM
2010
IEEE
13 years 7 months ago
2010
IEEE
Abstract--Time synchronization is a critical service for distributed network systems. In this work, we investigate this problem in the context of underwater sensor networks (UWSNs)...
GISCIENCE
2010
Springer
13 years 9 months ago
2010
Springer
Wireless sensor networks are deployed to monitor dynamic geographic phenomena, or objects, over space and time. This paper presents a new spatiotemporal data model for dynamic area...