112 search results - page 20 / 23 » Constant factor approximation of vertex-cuts in planar graph... |
ICRA
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract Minimizing the energy consumption of target tracking using a mobile sensor network is proved to be NPcomplete. Based on proximity graph, an approximately optimal solution ...
INFOCOM
2009
IEEE
14 years 2 months ago
2009
IEEE
—We consider a wireless network of n nodes that communicate over a common wireless medium under some interference constraints. Our work is motivated by the need for an efficient...
MOBIHOC
2008
ACM
14 years 7 months ago
2008
ACM
A Connected Dominating Set (CDS) working as a virtual backbone is an effective way to decrease the overhead of routing in a wireless sensor network. Furthermore, a kConnected m-Do...
ALGOSENSORS
2009
Springer
13 years 5 months ago
2009
Springer
Abstract. We describe a novel approach for constructing a single spanning tree for data aggregation towards a sink node. The tree is universal in the sense that it is static and in...
ESA
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. We study two-stage robust variants of combinatorial optimization problems like Steiner tree, Steiner forest, and uncapacitated facility location. The robust optimization ...