News
Information-centric Routing for Opportunistic Wireless Networks at ACM ICN 2018
 Last September we took DABBER to Boston and presented a poster at the ACM ICN 2018 conference.  In this poster we described DABBER key contribution: supports
communication in opportunistic wireless environments by relying on data
reachability metrics that take into consideration availability and
centrality of adjacent nodes, as well as the availability of different
data sources. The poster provides an overview to the DABBER
architecture, and of the available open-source implementation. |
Information-centric Routing for Opportunistic Wireless Networks
 DABBER aims to extend the reach of Name-Data Networking (NDN) to opportunistic wireless networks, while: i) avoid flooding the network with Interest packets, which is a major requirement of opportunistic networks; ii) selective forwarding of Interest packets based on data reachability information, and context awareness (neighborhood and node itself). The motivation behind DABBER is the lack of forwarding/routing proposals for NDN over opportunistic wireless networks. There are an extensive number of (forwarding) proposals for opportunistic wireless networks (e.g. dLife, Scorp), and an initial set of routing proposals for wired NDN networks (e.g. OSPFN, NSLR). But NO routing protocol to support NDN communications in wireless networks. Basic differences towards version 00 are:
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Edge Computing and Communications
 Panelist at the ACM SIGCOMM Workshop on Mobile Edge Communications 2018, Budapest, Hungary Participation together with George Polyzos (AUEB, Greece), Dirk Kutscher (Huawei, Germany), and Jussi Kangasharju (University of Helsinki, Finland). Insights about the deployment of edge computing namely about where to place the edge in wireless networks, and how to orchestrate a highly distributed multi-tenant system. Special attention was given to the deployment of distributed systems of edge nodes co-located with existing cellular transmitters, by leveraging their existing fiber optic cables or using wireless beamforming. A simple impact study was provided from a power perspective, showing that the "network edge" may account for only 1% of the total aggregated computational capacity. |
Named Data Emergency Network Services
 Emergency services are vulnerable to network fragmentation. This situation can be improved by allowing citizens to send messages to emergency centers, and to other nearby citizens using secure, reliable wireless services, able to operate even with intermittent connectivity. To achieve such a goal, we propose to leverage the Named-Data Networking (NDN) framework with a messaging system based on a new application, called Oi!, which uses two methods of push communication based on a new branch of NDN Android, called NDN-OPP that supports intermittent wireless networking. NDN-OPP allows NDN to operate in opportunistic wireless networks, based on a new type of face, called Opportunistic Face, OPPFace. OPPFaces are based on a system of queues able of holding packets while wireless faces are down. OPPFaces can be implemented by using any direct wireless communication, being the current version based on Wi-Fi Direct. To support emergency communications based on NDN, Oi! makes use of two push communication mechanisms implemented in NDNOPP to allow message exchange within the same wireless network: i) push based on special data packets (pData); ii) push based on a special Interest packet (LLI - Long Lived Interest). Research funded by the European Union (EU) Horizon 2020 program. Grant No. 645124 (UMOBILE: Universal, mobile-centric and opportunistic communications architecture). |
NDN-OPP and Oi! -- Code and APPs available
Version 1.0 of NDN-OPP and V1.0 of Oi! are available Work is being done in the EU project UMOBILE.  NDN-OPP extends NFD for operation in wireless multi-hop networks with intermittent connectivity. V1.0 provides direct wireless communication based on Wi-Fi direct (new Face) and is able of exploiting available open wireless access points. Code on Github Technical Report on COPELABS repository. Application on Google Play:  Oi! is a short message application that works on top of NDN Android and NDN-OPP. In the latter case Oi! makes usage of the push communication models implemented in NDN-OPP that allows messages to be forwarded to local authorities and pushed to nearby users (in emergency cases). Code on Github Technical Report on COPELABS repository Application on Google Play |
Submission of new Internet Draft to ICNRG
  The European UMOBILE project is working on methods to extend NDN towards opportunistic wireless networks. In this context, COPELABS has been implementing an NFD extension, called NDN-OPP, which supports NDN multi-hop wireless communication: NDN-OPP V1.0 for Android does broadcast of Interest packets over a Wi-Fi direct network. In order to reduce resource consumption in a NDN multi-hop wireless networks, COPELABS, SENCEPTION and ATHENA have created the DABBER routing protocol, which allows selective forwarding of Interest packets based on the local announcement of name prefixes + node awareness about the properties of neighbour nodes (centrality and availability). DABBER aims to operate on a point-to-point wireless network (e.g. Wi-Fi direct, DTN) as well as on a broadcast network (e.g. ah-hoc Wi-Fi). DABBER was submitted to IETF, and will be presented in the ICNRG meeting in London (Mar 17th - Mar 23rd). Further information on IETF Datatracker. |
Senception at the European Business Awards 2017/2018
 Vote for Senception at the European Business Awards 2017/2018, Public European ChampionSenception is one of the 'One to Watch' finalists in the European Business Awards 2017/2018. To vote, go to https://www.businessawardseurope.com/vote/detail-new/…/23303 and type your e-mail, followed by a click on the vote button. You will get a voting e-mail from the EBA voting system. Please click on that link to complete your vote. Thank you for your support! |
Participation in the ACM Information-Centric Networking 2017
COPELABS and Senception participated in the ACM ICN 2017 Conference, which took place in Berlin from Sept 26th to Sept 28th. On the second day, COPELABS participated in the poster and session section with a poster about Now@ - A Content Sharing Application over NDN, and a demo of NDN-OPP - Named-Data Networking in Opportunistic Networks.On the first day, COPELABS and Senception provided a tutorial about the H2020 UMOBILE project, together with University of Cambridge (UK), AFA (Italy) and Athena (Greece). COPELABS provided a talk about NDN operation in Opportunistic Wireless Networks and Senception a talk about Social-aware metrics derived from contextualization. Senception also provided a demo of the PerSense Mobile Light tool. Now@ and NDN-Opp are being developed in the context of the H2020 UMOBILE project. |
NDN operation in Opportunistic Wireless Networks @ NDNcomm 2017
NDN-Opp is being developed to extend the NDN framework in order to allow Named Data Networking in the context of opportunistic
wireless networks. NDN-Opp is being developed based on NDN implementation for Android aiming to support opportunistic
data forwarding based on users’ interests and their dynamic social
behavior. Data is exchanged directly between mobile devices via Wi-Fi direct. NDN-Opp is being developed in the context of the http://www.umobile-project.eu/. Information:
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![[CAIDA - Center for Applied Internet Data Analysis logo]](https://www.caida.org/images/caida_globe_faded.png "Go to CAIDA home page")
COPELABS presented Presence at IEEE INFOCOM 2016
 COPELABS was present in the 2016 edition of the IEEE INFOCOM conference. We provided two demonstrations of technology related to Opportunistic Networking and Opportunistic Sensing.
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