459 search results - page 68 / 92 » Approximation Algorithms for Buy-at-Bulk Geometric Network D... |
ISVC
2009
Springer
14 years 3 months ago
2009
Springer
While realistic illumination significantly improves the visual quality and perception of rendered images, it is often very expensive to compute. In this paper, we propose a new al...
COMPGEOM
2006
ACM
14 years 2 months ago
2006
ACM
We construct a class of envelope surfaces in Rd , more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the u...
IPSN
2009
Springer
14 years 3 months ago
2009
Springer
We consider the problem of monitoring spatial phenomena, such as road speeds on a highway, using wireless sensors with limited battery life. A central question is to decide where ...
NETWORK
2007
13 years 8 months ago
2007
If we abstract a sensor network as a network graph consisting of vertices and edges, where vertices represent sensor nodes and edges represent distance measurements between neighbo...
TCOM
2008
13 years 8 months ago
2008
The performance of multi-hop CSMA/CA networks has in most cases been evaluated via simulations, or analytically using a perfect collision channel model. Using such methods, one ca...