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SODA
2004
ACM
152views Algorithms» more  SODA 2004»
13 years 6 months ago
Approximation schemes for minimum 2-edge-connected and biconnected subgraphs in planar graphs
Given an undirected graph, finding either a minimum 2-edge-connected spanning subgraph or a minimum 2vertex-connected (biconnected) spanning subgraph is MaxSNP-hard. We show that ...
Artur Czumaj, Michelangelo Grigni, Papa Sissokho, ...
DIALM
2003
ACM
113views Algorithms» more  DIALM 2003»
13 years 10 months ago
Multicast time maximization in energy constrained wireless networks
We consider the problem of maximizing the lifetime of a given multicast connection in a wireless network of energyconstrained (e.g. battery-operated) nodes, by choosing ideal tran...
Patrik Floréen, Petteri Kaski, Jukka Kohone...
TCS
2010
13 years 1 days ago
Maximizing the minimum load for selfish agents
We consider the problem of maximizing the minimum load for machines that are controlled by selfish agents, who are only interested in maximizing their own profit. Unlike the class...
Leah Epstein, Rob van Stee
ICC
2008
IEEE
163views Communications» more  ICC 2008»
13 years 11 months ago
Network Coding Aware Dynamic Subcarrier Assignment in OFDMA Wireless Networks
—Taking advantage of the frequency diversity and multiuser diversity in OFDMA based wireless networks, dynamic subcarrier assignment mechanisms have shown to be able to achieve m...
Xinyu Zhang, Baochun Li
SIAMDM
2000
159views more  SIAMDM 2000»
13 years 5 months ago
Approximating Fractional Multicommodity Flow Independent of the Number of Commodities
Abstract. We describe fully polynomial time approximation schemes for various multicommodity flow problems in graphs with m edges and n vertices. We present the first approximation...
Lisa Fleischer