ISAAC
2009
Springer
14 years 6 months ago
2009
Springer
Given m unit disks and n points in the plane, the discrete unit disk cover problem is to select a minimum subset of the disks to cover the points. This problem is NP-hard [11] and ...
MOBIHOC
2006
ACM
14 years 11 months ago
2006
ACM
We study a novel hierarchical wireless networking approach in which some of the nodes are more capable than others. In such networks, the more capable nodes can serve as Mobile Ba...