My Current Research
 
    Theory
  
  1. Adoption of infinite arrival distributed computing models in a message passing system to model dynamic networks. Study of some fundamental problems (connectivity, communication, query-response, leader election, etc) and deterministic solutions (or impossibilities) in the models proposed. Related Documents -Connectivity (LADC07.pdf) - Query-Response (Pact07.pdf) - [NEW!] Eventual Leader Election (TechRep27Feb.pdf)Research_files/LADC07.pdfResearch_files/Pact07.pdfhttp://infoscience.epfl.ch/getfile.py?recid=89531&mode=bestResearch_files/TechRep27Feb.pdfshapeimage_3_link_0shapeimage_3_link_1shapeimage_3_link_2shapeimage_3_link_3
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   Gossip-based Algorithms
  
Algorithms for data consistency. a self-adaptive algorithm implementing the eventual consistency criterion working on a randomized overlay network. The algorithm is based only on gossip-based dissemination and uses self-adaptive techniques to limit inconsistencies and subsequent recoveries (rollbacks). Related Document: SSS06 Algorithms for Internal Clock Synchronization: a self-adaptive peer-to-peer clock synchronization algorithm working on randomized overlay network. The algorithm is based on the coupling oscillator paradigm which governs spontaneous synchronization of criquets, fireflies, etc. Related Document: technical report Evaluation Studies: Churn resilience of gossip-based algorithms devoted to the maintenance of randomized overlays. Related Document: AINA07.pdfhttp://infoscience.epfl.ch/getfile.py?recid=89531&mode=bestResearch_files/AINA07-2.pdfshapeimage_5_link_0shapeimage_5_link_1shapeimage_5_link_2
 
Event Dissemination in p2p Networks
  
Development of a scalable peer-to-peer publish/subscribe architecture based on randomized overlay networks. Objective: traffic confinement (event delivered only to those subscribers interested in the event). First efforts have been devoted to the event routing mechanism which is able to quickly locate interested subscribers independently of the popularity of their interests and of the publisher location. Related Documents: technical reportshapeimage_7_link_0
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Data Distribution Service Implementation
  
We are currently implementing the clock synchronization protocol based on the coupling oscillator paradigm in the DDS middleware (RTPS) to support QoS policies related to Order and Time Delivery in p2p networks. We want to test it on PlanetLab.
 
Research Activities
 
 
 
Publications
Education  
PC&Reviewing
 
 
 
 
 
 
Interesting Events
 
DEBS 2008
LADIS 2007
Gossip-based Computer Networking 2007
 
 
 
 
 
Interesting  Links
PeerSim: a simulator for p2p networks
 
PlanetLab
 
Data Distribution Service
 
Some papers about Coupled Oscillators