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Scheduling multicasts on unit-capacity trees and meshes

Publications associées (42)

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Network Correlated Data Gathering with Explicit Communication: NP-Completeness and Algorithms

Martin Vetterli, Razvan Cristescu

We consider the problem of correlated data gathering by a network with a sink node and a tree based communication structure, where the goal is to minimize the total trans- mission cost of transporting the information collected by the nodes, to the sink nod ...

2006

High Throughput Total Order Broadcast for Cluster Environments

Rachid Guerraoui, Bastian Pochon, Ron Levy

Total order broadcast is a fundamental communication primitive that plays a central role in bringing cheap software-based high availability to a wide array of services. This paper studies the practical performance of such a primitive on a cluster of homoge ...

2006

New approaches for virtual private network design

Friedrich Eisenbrand

Virtual private network design is the following NP-hard problem. We are given a communication network, represented as a weighted graph with thresholds on the nodes which represent the amount of flow that a node can send to and receive from the network. The ...

2005

Energy-efficient Broadcasting in All-wireless Networks

Jean-Pierre Hubaux, Christian Enz, Mario Cagalj

In all-wireless networks, minimizing energy consumption is crucial as in most cases the nodes are battery-operated. We focus on the problem of power-optimal broadcast, for which it is well known that the broadcast nature of radio transmissions can be explo ...

2005

Active measurement for multiple link failure diganosis in IP networks

Patrick Thiran, Xuan Hung Nguyen

Simultaneous link failures are common in IP networks \cite{Markopoulou04}. In this paper, we develop a technique for locating multiple failures in Service Provider or Enterprise IP networks using active measurement. We propose a two-phased approach that mi ...

2004

Networked Slepian-Wolf: Theory and Algorithms

Martin Vetterli, Razvan Cristescu

In this paper, we consider the minimization of a relevant energy consumption related cost function in the context of sensor networks where correlated sources are generated at various sets of source nodes and have to be transmitted to some set of sink nodes ...

Springer Verlag2004

Networked Slepian-Wolf: Theory and Algorithms

Martin Vetterli, Razvan Cristescu

2004

Scheduling multicasts on unit-capacity trees and meshes

Monika Henzinger

This paper studies the multicast routing and admission control problem on unit-capacity tree and mesh topologies in the throughput model. The problem is a generalization of the edge-disjoint paths problem and is NP-hard both on trees and meshes. We study b ...

2003

Power Efficient Gathering of Correlated Data: Optimization, NP-Completeness and Heuristics

Martin Vetterli, Razvan Cristescu

This paper studies the interaction between the communication costs in a sensor network and the structure of the data that it measures. We formulate an optimization problem definition for power efficient data gathering and assess its computational difficult ...

2003

Fault location algorithms for optical networks

Today, there is no doubt that optical networks are the solution to the explosion of Internet traffic that two decades ago we only dreamed about. They offer high capacity with the use of Wavelength Division Multiplexing (WDM) techniques among others. Howeve ...

EPFL2000