Information-centric Routing for Opportunistic Wireless Networks

posted Aug 29, 2018, 3:24 AM by Paulo Mendes   [ updated Aug 29, 2018, 3:24 AM ]


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:
    • The FIB ranking operation was removed in other to be compatible with the current NFD implementation, which does not allow any operation to the done at the FIB level.
    • Better explanation of the relationship towards NSLR: Although DABBER specification allows an easier integration with NDN access networks based on NSLR, its operation is completely independent of NSLR.
    • Revised explanation of the Multiple Path Computation based on adjustments done during the implementation.

Edge Computing and Communications

posted Aug 29, 2018, 3:01 AM by Paulo Mendes   [ updated Aug 29, 2018, 3:10 AM ]



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

posted Aug 29, 2018, 2:44 AM by Paulo Mendes   [ updated Aug 29, 2018, 2:51 AM ]


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

posted Mar 2, 2018, 7:23 AM by Paulo Mendes   [ updated Mar 2, 2018, 7:23 AM ]

Version 1.0 of NDN-OPP and V1.0 of Oi! are available
Work is being done in the EU project UMOBILE.

Cover art

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:



Cover art

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

posted Feb 23, 2018, 2:50 AM by Paulo Mendes   [ updated Feb 23, 2018, 2:55 AM ]


IETF               UMOBILE logo

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

posted Feb 2, 2018, 2:22 AM by Paulo Mendes   [ updated Feb 2, 2018, 2:22 AM ]

European Business Awards - 'Ones to Watch' 2017/2018

Vote for Senception at the European Business Awards 2017/2018, Public European Champion

Senception 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

posted Oct 10, 2017, 8:03 AM by Paulo Mendes   [ updated Oct 10, 2017, 8:05 AM ]

COPELABS and Senception participated in the ACM ICN 2017 Conference, which took place in Berlin from Sept 26th to Sept 28th.

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.

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.

Now@ and NDN-Opp are being developed in the context of the H2020 UMOBILE project.

NDN operation in Opportunistic Wireless Networks @ NDNcomm 2017

posted Mar 23, 2017, 7:53 AM by Paulo Mendes   [ updated Mar 23, 2017, 7:54 AM ]

[CAIDA - Center for Applied Internet Data Analysis logo]COPELABS presented NDN framework for Opportunistic Networks (NDN-Opp) at the NDN Community Meeting (NDNcomm 2017) in Memphis. 

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:

Presence at IEEE INFOCOM 2016

posted Nov 3, 2016, 4:23 AM by Paulo Mendes   [ updated Jan 26, 2017, 6:01 AM ]

   
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.

Presence at ACM MOBICOM 2016

posted Nov 2, 2016, 8:25 AM by Paulo Mendes   [ updated Nov 3, 2016, 4:32 AM ]


COPELABS and Senception delivered two demonstrations at ACM MOBICOM 2016.

Recommendations over Wi-Fi.

DDicas is a tool that relies on Wi-Fi fencing to perform user recommendations concerning local events or activities. DDicas has the following advantages: low-cost; no need to have constant Internet access; no need to have constant GPS access (works indoors and outdoors); advertisement provided based on interests, and not based on geo-fencing. DDicas is being developed by COPELABS in collaboration with Senception.

Small Group Safety Prevention.

PerSense Mobile Light is a tool developed by Senception to assist in research related with wireless roaming aspects. PerSense Mobile Light seamlessly captures wireless data (Wi-Fi and Wi-Fi Direct) thus providing traces that the wireless research community can rely upon to better characterize wireless roaming habits, as well as daily social routines. Developed in the context of the H2020 UMOBILE project, PerSense Mobile Light is currently available as a beta tool - to have access to it, please register via the Google+ Pervasive Sensing Experimental Tools community.

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