May 1, 2018
Apr 15, 2018
Jan 9, 2018
Jan 9, 2018

Recent Publications

More Publications

. FluidRAN: Optimized vRAN/MEC Orchestration. In IEEE INFOCOM, 2018.

Preprint

. On the energy efficiency of rate and transmission power control in 802.11. In Elsevier Computer Communications, 2018.

Preprint PDF

. WizHaul: On the Centralization Degree of Cloud RAN Next Generation Fronthaul. In IEEE Transactions on Mobile Computing, 2018.

Preprint PDF

. Fair Coexistence of Scheduled and Random Access Wireless Networks: Unlicensed LTE/WiFi. In IEEE/ACM Transactions on Networking, 2017.

Preprint PDF

. Low Delay Random Linear Coding and Scheduling Over Multiple Interfaces. In IEEE Transactions on Mobile Computing, 2017.

Preprint PDF

Selected Publications

We study the important and challenging vRAN design problem. We propose a novel modeling approach and a rigorous analytical framework, FluidRAN, that minimizes RAN costs by jointly selecting the splits and the RUs-CUs routing paths. Our framework provides a joint vRAN/MEC solution that minimizes operational costs while satisfying the MEC needs. We follow a data-driven evaluation method, using topologies of 3 operational networks.
In IEEE INFOCOM, 2018

We propose two solutions jointly addressing the joint selection of radio access network functional splits and routing: (i) a nearly-optimal backtracking scheme, and (ii) a low-complex greedy approach. We first validate the feasibility of our approach in an experimental proof-of-concept, and then evaluate both algorithms via simulations in large-scale (real and synthetic) topologies.
In IEEE Transactions on Mobile Computing, 2018

We study the fair coexistence of scheduled and random access transmitters sharing the same frequency channel. In this paper, we show that mixing scheduled and random access incurs an inherent throughput/delay cost and the cost of heterogeneity. We derive the joint proportional fair rate allocation, which casts useful light on current LTE/WiFi discussions.
In IEEE/ACM Transactions on Networking, 2017

In this paper, we propose Stochastic Earliest Delivery Path First (S-EDPF), a generalization of EDPF which takes into account uncertainty and time-variation in path delays yet has low-complexity suited to practical implementation. Moreover, we integrate a novel low-delay Forward Error Correction (FEC) scheme into S-EDPF in a principled manner by deriving the optimal schedule for coded packets across multiple paths.
In IEEE Transactions on Mobile Computing, 2017

In this work we present srsLTE, an open-source platform for LTE experimentation designed for maximum modularity and code reuse and fully compliant with LTE Release 8.
In ACM WiNTECH, 2016

In this article we provide a thorough overview of the novel functionalities defined in Wi-Fi Direct, and present an experimental evaluation that portrays the performance to be expected in real scenarios.
In IEEE Wireless Communications, 2013

Projects

5G-TRANSFORMER

5G-TRANSFORMER is an H2020 PPP project co-funded by the European Commission under the ICT theme (H2020-ICT-2016-2). 5G-TRANSFORMER aims to transform today’s mobile transport network into an SDN/NFV-based Mobile Transport and Computing Platform (MTP), which brings the “Network Slicing” paradigm into mobile transport networks by provisioning and managing MTP slices tailored to the specific needs of vertical industries.

5G-CROSSHAUL

5G-Crosshaul is an H2020 PPP project co-funded by the European Commission under the ICT theme (Call 14). The 5G-Crosshaul project aims at developing a 5G integrated backhaul and fronthaul transport network enabling a flexible and software-defined reconfiguration of all networking elements in a multi-tenant and service-oriented unified management environment.

FLAVIA

FLAVIA is a project funded by the European Commission under FP7 Call 5, Objective 1.1: The Network of the Future. FLAVIA fosters a paradigm shift towards the Future Wireless Internet: from pre-designed link services to programmable link processors. The key concept is to expose flexible programmable interfaces enabling service customization and performance optimization through software-based exploitation of low-level operations and control primitives, e.g., transmission timing, frame customization and processing, spectrum and channel management, power control, etc.

CARMEN

CARMEN (CARrier grade MEsh Networks) is funded by the European Commission under the ICT theme ICT-2007.1.1 - The network of the future. CARMEN will study and specify a wireless mesh network supporting carrier grade triple-play services for mobile/fixed network operators. Future operator networks will be comprised of a common core network and several access networks, and the CARMEN access network will complement other access technologies by providing a low cost and fast deployment mesh network access technology. The project proposes the integration of heterogeneous wireless technologies in a multi-hop fashion to provide scalable and efficient ubiquitous quad-play carrier services.

Service to Research Community

Editorial and Organization duties

Technical Program Committee (TPC) and Reviewing duties

  • TPC member in IEEE Globecom (2018), MadCom (2018), FiCloud (2018), IEEE COMNETSAT (2018), IEEE MASS (2018), EFC-IoT (2018), IEEE VTC (2015-Fall, 2017-spring), Elsevier Computer Communications (2014, 2015, 2016), MACOM (2014, 2015), AWICT (2015), IEEE GlobalSIP (2015), MOBIWAC (2014, 2015, 2016, 2017, 2018), ACM WiNTECH (2013, 2016, 2017), SustainIT (2013, 2014, 2015, 2016), ICALP (2012)
  • Regular reviewer of IEEE Communication Letters (2014 Exemplary Reviewer), IEEE Journal on Selected Areas in Communication (JSAC), IEEE Transactions on Vehicular Technology, IEEE INFOCOM, IEEE Wireless Communications, IEEE/ACM Transactions on Networking, IEEE Transactions on Mobile Computing, IEEE Communications Magazine, IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Communication Surveys & Tutorials, IEEE Globecom, IEEE VTC, Elsevier Adhoc Networks, Springer Wireless Networks, International Conference on Communications (ICT), EURASIP Journal on Wireless Communications and Networking, IEEE Globecom, International Workshop on Multiple Access Communications (MACOM), Elsevier Computer Communications (COMCOM), Elsevier Computer Networks (COMNET), International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), International Workshop on Wireless Network Testbeds (WiNTECH), International Colloquium on Automata, Languages and Programming (ICALP), International Symposium on a World of Wireless, Mobile and Multimedia Networks (IEEE WoWMoM).

Teaching

I have supervised the following students:

  • Josep Xavier Salvat, M.Sc. Telematics Eng., Universitat Politècnica de Catalunya (2016).
  • Jose Maria Montes Yuste, B.Sc. Telematics Eng., University Carlos III of Madrid (2013).
  • Georgios Z. Papadopoulos, M.Sc Telematics Eng., University Carlos III of Madrid (2012).
  • Vasileios Papadopoulos, B.Sc. Software Eng., Alexander Technological Institute of Thessaloniki (2011).

My teaching duties, while being a Teaching Assistant (TA) at UC3M, were:

  • Theory of networks (10 /11, 11 /12, 12 /13): Introduction to probability, Markov models and queueing theory. B.Sc. Telematics Eng. University Carlos III of Madrid
  • Audiovisual mobile systems (12 /13): Introduction to wireless communication systems. B.Sc. Telematics Eng. University Carlos III of Madrid
  • Networks and Services (09 /10, 10 /11, 11 /12): General introduction to communication networks. B.Sc. Telematics Eng. University Carlos III of Madrid

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