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COMBINATORICS
2006
169views more  COMBINATORICS 2006»
15 years 6 months ago
The Diameter and Laplacian Eigenvalues of Directed Graphs
For undirected graphs it has been known for some time that one can bound the diameter using the eigenvalues. In this note we give a similar result for the diameter of strongly con...
Fan R. K. Chung
ESA
2004
Springer
97views Algorithms» more  ESA 2004»
15 years 12 months ago
Radio Network Clustering from Scratch
Abstract. We propose a novel randomized algorithm for computing a dominating set based clustering in wireless ad-hoc and sensor networks. The algorithm works under a model which ca...
Fabian Kuhn, Thomas Moscibroda, Roger Wattenhofer
ADHOCNOW
2005
Springer
16 years 11 hour ago
Performance Analysis of the Hierarchical Layer Graph for Wireless Networks
The Hierarchical Layer Graph (HL graph) is a promising network topology for wireless networks with variable transmission ranges. It was introduced and analyzed by Meyer auf der He...
Stefan Rührup, Christian Schindelhauer, Klaus...
COMBINATORICA
2004
79views more  COMBINATORICA 2004»
15 years 6 months ago
The Deletion Method For Upper Tail Estimates
We present a new method to show concentration of the upper tail of random variables that can be written as sums of variables with plenty of independence. We compare our method with...
Svante Janson, Andrzej Rucinski
CRYPTO
2007
Springer
134views Cryptology» more  CRYPTO 2007»
16 years 19 days ago
Domain Extension of Public Random Functions: Beyond the Birthday Barrier
A public random function is a random function that is accessible by all parties, including the adversary. For example, a (public) random oracle is a public random function {0, 1}â...
Ueli M. Maurer, Stefano Tessaro