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» Approximability of Minimum AND-Circuits
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INFOCOM
2007
IEEE
14 years 3 months ago
Routing, Anycast, and Multicast for Mesh and Sensor Networks
Abstract— This paper studies routing schemes and their distributed construction in limited wireless networks, such as sensor or mesh networks. We argue that the connectivity of s...
Roland Flury, Roger Wattenhofer
FOCS
2000
IEEE
14 years 1 months ago
Hierarchical Placement and Network Design Problems
In this paper, we give the first constant-approximations for a number of layered network design problems. We begin by modeling hierarchical caching, where caches are placed in la...
Sudipto Guha, Adam Meyerson, Kamesh Munagala
FOCS
2008
IEEE
14 years 3 months ago
Algorithms for Single-Source Vertex Connectivity
In the Survivable Network Design Problem (SNDP) the goal is to find a minimum cost subset of edges that satisfies a given set of pairwise connectivity requirements among the ver...
Julia Chuzhoy, Sanjeev Khanna
ICC
2007
IEEE
245views Communications» more  ICC 2007»
14 years 3 months ago
Low Complexity MMSE Vector Precoding Using Lattice Reduction for MIMO Systems
—In this paper, a lattice-reduction-aided (LRA) With such an approximation, the complexity of VP is greatly minimum mean square error (MMSE) vector precoding (VP) is reduced. pro...
Feng Liu, Ling-ge Jiang, Chen He
ISAAC
2004
Springer
137views Algorithms» more  ISAAC 2004»
14 years 2 months ago
The Polymatroid Steiner Problems
The Steiner tree problem asks for a minimum cost tree spanning a given set of terminals S ⊆ V in a weighted graph G = (V, E, c), c : E → R+ . In this paper we consider a genera...
Gruia Calinescu, Alexander Zelikovsky