News!

  • Jul 2017
    I will join University of Cambridge (Computer Laboratory) as a Research Associate.
  • May 2017
    I defended my PhD thesis with Excellent Cum Laude at UPC and Pass With Distinction and Honour at IST.
  • Jan 2017
    Our paper entitled "Practical Service Placement Approach for Microservices Architecture" got accepted at CCGrid 2017!
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  • Oct 2016
    We will present the Cloudy - Docker integration at LCN demo session!
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  • Jul 2016
    Our work on Service Placement got accepted at IEEE LCN 2016!
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  • Apr 2016
    I will be joining the Computer Laboratory, University of Cambridge for three months as a visiting researcher !
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  • Apr 2016
    Our PASP paper got accepted at Euro-Par 2016 !
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  • Oct 2015
    Our paper entitled "Cloud Services in the Guifi.net Community Network" is now available online at Computer Networks - Journal - Elsevier !
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  • Sep 2015
    Our paper entitled "Integration of an Assisted P2P Live Streaming Service in Community Network Clouds" will appear at CloudCom'15, Vancouver, Canada !
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    Wireless community networks (CNs) are large-scale, self-organized and decentralized communication infrastructures built and operated by citizens for citizens. Community network cloud infrastructures have been recently introduced to run services inside the network, without the need to consume them from the Internet. We have developed a Linux-based distribution code-named Cloudy, which fosters the service deployment and automation in community network clouds. In this paper we present two ways provisioned by Cloudy to integrate the services and improve the users QoS in these clouds. First, we present a distributed service discovery mechanism that helps users with service quality metrics to choose the best service from a pool of instances. Second, we experiment with a live video streaming service deployed in CN environments, using more than 50 real CN nodes across Europe for the evaluation. Our analysis shows that tuning the vital parameters of this service as neighborhood peer selection strategy and source node dispersion strategy, improves the video streaming QoS in the CNs. Our results indicate that both ways help the user to experience improved service performance. Automated service selection, needed once the number of micro service providers becomes larger, is the next step that can be built upon our results.
  • Mar 2015
    Our paper entitled "TROBADOR: Service Discovery for Distributed Community Network Micro-Clouds" will appear at AINA'15, Gwangju, Korea !
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    Community networks are decentralized communication networks built and operated by citizens, for citizens. We consider service discovery for clouds in such community networks. The currently employed solutions for service discovery are static and are not able to follow the dynamics in cloud service provision. We propose a novel service discovery mechanism based on the common Linux tool Avahi combined with TincVPN, in which the VPN allows Avahi to reach nodes beyond the local link. The concept of the micro-cloud is introduced which contains the nodes reached with the extended broadcast domain of Avahi.
  • Dec 2014
    Our paper entitled "Distributed Storage and Service Discovery for Heterogeneous Community Network Clouds" will appear at UCC'14, London, UK.
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    ACM/IEEE UCC 2014
  • Sep 2014
    Demo presented at MASCOTS'14 Paris, France !
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    We presented in a demo the community clouds that we have deployed in Guifi.net in MASCOTS 2014. We showed also experimental evaluations and measurements that we did on application performance on community cloud, in order to point to the audience to the opportunity to engage and participate in further measurement studies. MASCOTS was attended by approximately 50 people.
  • Aug 2014
    Our SIGCOMM DCC´14 work has been covered by ICT-FIRE!
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    The paper “Experiences with Distributed Heterogeneous Clouds over Community Networks” from Mennan Selimi, Felix Freitag, Daniel Marti, Roger Pueyo Centelles, Pau Escrich, Roger Baig was presentaed as poster in the ACM SIGCOMM Workshop on Distributed Cloud Computing DCC 2014, colocated with SIGCOMM 2014.
  • Aug 2014
    Poster paper presented at SIGCOMM DCC'14 workshop in Chicago, USA !
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    Our paper “Experiences with Distributed Heterogeneous Clouds over Community Networks” was presented as poster in the ACM SIGCOMM Workshop on Distributed Cloud Computing DCC 2014, collocated with SIGCOMM 2014 in Chicago, USA. SIGCOMM showed to be an excellent conference for dissemination of community networking and sharing of ideas on community clouds.