Proactive radio- and QoS-aware UAV as BS deployment to improve cellular operations

Journal paper at Elsevier Computer Networks

Unmanned Aerial Vehicle as Base Stations (UAV-BS) is a promising technology for mitigating Terrestrial Base Stations (TBS) failures or becoming an ideal temporary solution to offloading. UAV-BS can be deployed to complement existing cellular systems by providing additional capacity to hotspot areas, as well as to provide network coverage in emergency and public safety situations. A key issue for the success of UAV-BS is to design and model how to define the position and behavior of UAV-BSs to improve the coverage area for mobile users while enhancing the Quality of Service (QoS). This article proposes ProactivE Radio-QoS-aware UAV-BS deployment mechanism to improve Cellular nEtwork oPeraTion (PERCEPT) to define the positioning of the UAV-BS’s in specific zones according to the conditions of the LTE networks and QoS.

You can get this paper from HERE.

November 1, 2021 4:30:16 PM

Internet of Space: Communication Systems for Future Space-based Internet Services

Keynote Speech at European Wireless 2019

Since the first commercial satellite, launched in 1965, satellite communications have evolved to provide low latency services based on constellations of small LEO satellites, and high data rate services based on High Throughput GEO Satellites (HTS) capable of managing flexible multiple ‘spot beams’ covering desirable service areas. Based on HTS and LEO constellations, the next step to boost the usage of satellite networks passes by its integration with terrestrial cellular networks, as 5G, and other non-terrestrial networks, such as high altitude pseudo-satellites. However, to achieve a full Internet of Space, there is the need to define a unifying networking framework able to sustain the specific properties of dynamic scenarios, which include heterogeneous physical layers, frequent changes in network topology, high propagation delays, and intermittent connectivity.

You can get the presentation slide from HERE.

May 10, 2019 8:28:29 AM

Wireless Networking for Autonomous Mobile Smart Cameras

Godwin Asaamoning (NEMPS PhD student 2017) presented on NETSYS 2019 conference a poster about his PhD work on the topic of wireless communications for autonomous drones.

More precisely the work aims to investigate reliable, low latency wireless communications able to support the autonomous operation of a self-organized set of drones, while still providing enough data rate to allow video collected from each drone to be streamed to a ground station.

Mar 26, 2019 7:45:51 AM

Information-centric Routing for Opportunistic Wireless Networks at ACM ICN 2018

Did you like the specification of the DABBER protocol has published in the IETF draft draft-mendes-icnrg-dabber-01 (IRTF ICN Research group)?

Last September we took DABBER to Boston and presented a poster at the ACM ICN 2018 conference.

Nov 22, 2018 3:20:41 PM

Information-centric Routing for Opportunistic Wireless Networks

Version 02 -- Data Reachability Based Routing (DABBER) Protocol.

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.

Aug 29, 2018 10:24:1 AM

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.

Aug 29, 2018 10:1:32 AM

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).

Work Presented at ACM MOBISYS 2018, Munich, Germany

Aug 29, 2018 9:44:35 AM

NDN-OPP and Oi! -- Code and APPs 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.

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).

Mar 02, 2018 3:23:13 PM

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.

Feb 23, 2018 10:50:52 AM

Senception at the European Business Awards 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…/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!

Feb 02, 2018 10:22:21 AM

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 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.

Oct 10, 2017 3:3:22 PM

NDN operation in Opportunistic Wireless Networks @ NDNcomm 2017

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

Mar 23, 2017 2:53:6 PM

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.

Nov 03, 2016 11:23:15 AM

COPELABS and Senception delivered two demonstrations at ACM MOBICOM 2016.


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.


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.

Nov 02, 2016 3:25:40 PM

Universal, mobile-centric and opportunistic communications architecture

Cars, sensors, home appliances, every device in the daily life of citizens is becoming a constituent in Future Internet, adding to the need to reconsider requirements and assumptions in terms of network availability and affordability to support the ever increasing traffic demand. Still, the current Internet can only evolve adequately, if its infrastructure can be devised to accommodate the emerging services, which is very expensive.The goal of the Horizon2020 UMOBILE project is to make the Future Internet universally pervasive, by supporting a diverse set of services. To achieve this, we are developing a universal mobile-centric and opportunistic communications architecture, which integrates the principles of Delay Tolerant Networking (DTN) and Information Centric Networking (ICN) in a common framework.

"The Universal, Mobile-centric and Opportunistic Communications Architecture project (UMOBILE) has received funding from the European Union’s (EU) Horizon 2020 research and innovation programme under grant agreement No 645124"

Project Outcome (February - June 2015):

Input to the UMOBILE project:

Jul 08, 2015 10:45:21 AM