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Hierarchical Cooperation Achieves Optimal Capacity Scaling in Ad Hoc Networks

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A statistical physics perspective of complex networks

Thomas Petermann

A statistical physics perspective of complex networks: from the architecture of the Internet and the brain to the spreading of an epidemic Statistical physics has revealed itself as the ideal framework to describe large networks appearing in a variety of d ...

EPFL2005

On the Throughput of Ad Hoc Networks using Connectivity Graphs

Christina Fragouli

In this paper we propose a set of necessary and sufficient conditions under which the throughput in an ad-hoc network can remain constant as the number of nodes n increases. Throughput refers to the minimum achievable rate between a source-destination pair ...

2005

Large scale selective event dissemination

Sidath Handurukande

Event-based systems usually denote distributed infrastructures that are used to asynchronously disseminate information among geographically distant computing units. In these systems, the information sources (a.k.a. publishers) produce events and the system ...

EPFL2005

On the role of feedback in large sensor networks

Michael Christoph Gastpar

Feedback can considerably simplify the task of approaching and achieving the performance limits predicted by information theory. This paper determines some of the potential offered by feedback in a typical sensor network situation that could be termed moni ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2004

Protocol overheads in networks

Prasenjit Dey

To increase network capacity, it may not be sufficient to just increase the capacity of the networks. It may be necessary to reduce the network overhead bits, to leave more room for the data bits, to increase the network capacity. As network functions beco ...

EPFL2004

Coping with misbehavior in mobile ad-hoc networks

Sonja Buchegger

In this work, we address the question of how to enable a system to operate despite the presence of misbehavior. Specifically, in a mobile ad-hoc network, how can we keep the network functional for normal nodes when other nodes do not route and forward corr ...

EPFL2004

Coping With Misbehavior in Mobile Ad-hoc Networks

Sonja Buchegger

CRC Press2004

Connectivity vs Capacity in Dense Ad Hoc Networks

Patrick Thiran, Olivier Dousse

We study the connectivity and capacity of finite area ad hoc wireless networks, with an increasing number of nodes (dense networks). We find that the properties of the network strongly depend on the shape of the attenuation function. For power law attenuat ...

2004

On the Throughput of Ad-Hoc Networks using Connectivity Graphs

Christina Fragouli

2004

Opportunistic search with semantic fisheye views

Pearl Pu Faltings

Search goals are often too complex or poorly defined to be solved with a single query in a Web-based information environment. In this paper we describe how we use semantic fisheye views (SFEVs) to effectively support opportunistic search and browsing strat ...

Springer-Verlag2004