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High Throughput Total Order Broadcast for Cluster Environments

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Achieving high-throughput State Machine Replication in multi-core systems

André Schiper, Nuno Filipe de Sousa Santos

State machine replication is becoming an increasingly popular technique among online services to ensure fault-tolerance using commodity hardware. This has led to a renewed interest in its throughput, as these services have typically a large number of users ...

2011

Throughput Optimal 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 range of services. This paper studies the practical performance of such a primitive on a cluster of homoge ...

Association for Computing Machinery2010

Stretching BFT

Rachid Guerraoui, Marko Vukolic, Nikola Knezevic

State-of-the-art BFT protocols remain far from the maximum theoretical throughput. Based on exhaustive eval- uation and monitoring of existing BFT protocols, we highlight few impediments to their scaling. These include the use of IP multicast, the presence ...

2010

Dual frequency reflectarray cell using split-ring elements with RF MEMS switches

Julien Perruisseau-Carrier, Caner Güçlü

In this study, a dual frequency circularly polarized reconfigurable reflectarray (RA) cell with RF-MEMS switches is designed. RA combines the advantages of reflector-based and phased array antennas, providing a low-cost and high performance antenna array s ...

IEEE Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, NJ 08855-1331 USA2010

On the Fairness of Large CSMA Networks

Patrick Thiran, Olivier Dousse, Mathilde Durvy

We characterize the fairness of decentralized medium access control protocols based on CSMA/CA, such as IEEE 802.11, in large multi-hop wireless networks. In particular, we show that the widely observed unfairness of the protocol in small network topologie ...

Institute of Electrical and Electronics Engineers2009

The complexity of reliable distributed storage

Ron Levy

Distributed storage systems based on commodity hardware have gained in popularity because they are cheaper, can be made more reliable and offer better scalability than centralized storage systems. However, implementing and managing such systems is more com ...

EPFL2008

Method to manage the load of peripheral elements within a multicore system

Giovanni De Micheli, David Atienza Alonso, Federico Angiolini

The aim of the present invention is to propose a method to provide reliability, power management and load balancing support for multicore systems based on Networks- on-Chip (NoCs) as well as a way to efficiently implement architectural support for this met ...

2008

Distributed processing over adaptive networks

Ali H. Sayed

Distributed adaptive algorithms are proposed based on incremental and diffusion strategies. Adaptation rules that are suitable for ring topologies and general topologies are described. Both distributed LMS and RLS implementations are considered in order to ...

2006

Three topics in parallel communications

Emin Gabrielyan

The main objectives pursued by parallelism in communications are network capacity enhancement and fault-tolerance. Efficiently enhancing the capacity of a network by parallel communications is a non-trivial task. Some applications may also allow one to spl ...

EPFL2006

A Fast HW/SW FPGABased Thermal Emulation Framework for MultiProcessor SystemonChip

Giovanni De Micheli, David Atienza Alonso, Luca Benini, Pablo Garcia del Valle

With the growing complexity in consumer embedded products and the improvements in process technology, Multi-Processor System-On-Chip (MPSoC) architectures have become widespread. These new systems are complex to design as they must execute multiple complex ...

2006