805 search results - page 5 / 161 » Spatial queries in sensor networks |
TWC
2011
13 years 3 months ago
2011
Abstract—We target a two-tier sensor network with resourcerich master nodes at the upper tier and resource-poor sensor nodes at the lower tier. Master nodes collect data from sen...
EWSN
2006
Springer
14 years 8 months ago
2006
Springer
Abstract. We propose a lightweight localisation approach for supporting distance and range queries in ad hoc wireless sensor networks. In contrast to most previous localisation app...
SUTC
2008
IEEE
14 years 3 months ago
2008
IEEE
Most of research efforts have elaborated on k-anonymity for location privacy. The general architecture for implementing k-anonymity is that there is one trusted server (referred t...
SIGMOD
2008
ACM
14 years 9 months ago
2008
ACM
This demo presents a privacy-preserving aggregate location monitoring system, namely, TinyCasper, in which we can monitor moving objects in wireless sensor networks while preservi...
IPSN
2007
Springer
14 years 2 months ago
2007
Springer
In this paper we propose a lightweight algorithm for constructing multi-resolution data representations for sensor networks. We compute, at each sensor node u, O(log n) aggregates...