Telefonica I+D/GCTO

At my current affiliation in Telefonica I+D/GCTO, I am involved in backbone and metro projects for Telefonica Group and European Commission. Currently, I'm involved in the following projects funded by public institutions:

  • ACINO: (Application-Centric IP/Optical Network Orchestration) ACINO proposes a novel application-centric network concept, which differentiates the service offered to each application all the way down to the optical layer, thereby overcoming the disconnect that the grooming layer causes between service requirements and their fulfillment in the optical layer. This allows catering to the needs of emerging medium-large applications, such as database migration in data centers. To realize this vision, ACINO aims to develop an open source, vendor-agnostic modular orchestrator, which will expose to applications a set of high level primitives for specifying service requirements, and then perform multi-layer (IP and optical) planning and optimization processes to map these requirements into a set of lightpaths. The orchestrator will also be able to perform re-optimization, by means of a novel online in-operation planning module. The ACINO consortium has strong industrial foundations, and plans to demonstrate the advantages of its approach in a testbed with commercial equipment in a carrier environment.
  • STRAUSS: (Scalable and efficient orchestration of Ethernet services using software-defined and flexible optical networks) The aim of the project is to define a highly efficient and global (multi-domain) optical infrastructure for Ethernet transport, covering heterogeneous transport and network control plane technologies, enabling an Ethernet ecosystem. It will design, implement and evaluate, via large-scale demonstrations, an advanced optical Ethernet transport architecture. The proposed architecture leverages on software defined networking principles, on optical network virtualization as well as on flexible optical circuit and packet switching technologies beyond 100 Gbps. I lead Telefonica contribution on this project. Our role is the definition of the use cases and the design and implementation of a controller to support domains with OpenFlow and GMPLS.
  • IDEALIST: (Industry-Driven Elastic and Adaptive Lambda Infrastructure for Service and Transport Networks) The aim of the project is to research in detail a cost and power efficient transport network architecture able to carry a wide range of signal bandwidths, each of which will be varying in real time in direction and magnitude, and some of which will be extremely large and possibly exceeding 1Tb/s. I lead the task "Adaptive Network and Service Interworking", where we are defining and implementing a modular architecture for the automatic operation of elastic optical networks. Moreover, I have worked on techno-economic studies to assess elastic optical networks in real deployments and on the control plane task, where new extensions are defined and implemented to support flexgrid in GMPLS.
  • PACE: (Next Steps in PAth Computation Element (PCE) Architectures) PACE is focus on research, development and standards in the broad area of Path Computation Element (PCE)- based architectures. PACE provides an open source portal with PCE open source software and documentation repository, as well as sustained collaborative action within a concentrated community of industrial leaders, developers, and academics.

I have worked on these projects:

  • REACTION: (Research and Experimental Assessment of Control plane archiTectures for In-Operation flexgrid Network re-optimization) This project is focus on the experimental evaluation of Sliceable transponders and control plane architectures to bring closer the planning and the network operation. My contribution is the definition and implementation of workflows in the ABNO architecture to support the use cases defined in the project.
  • ONE: ONE addresses three important trends in networking: programmability, semantic adaptation and orchestration. ONE's main goal is to contribute to these trends, especially in the context of integration of high-speed optical transmission and switching with the future Internet. ONE is an architecture, system and tool at the same time. ONE unique focus on network management systems (NMS). I leaded the contribution of Telefonica on this project. I worked in all aspects in the project from the architectural and functional definition of the ONE adapter to the experimental validation and techno-economic assessment. We carried out a field trial in O2 to demonstrate that IP/MPLS and optical coordination is feasible.
  • Strongest: (Scalable, Tunable and Resilient Optical Networks Guaranteeing Extremely-high Speed Transport) The main goal of the project is to design and demonstrate an evolutionary transport network, ensuring higher scalability, cost effectiveness and better end-to-end quality of service. My contribution was focus on techno-economic studies for optical networks and the definition, implementation and evaluation of the PCE for multi-layer and WSON networks.
  • TREND: (Towards Real Energy-efficient Network Design) This project integrates and drives towards commonly agreed technical goals the many recent research efforts in energy-efficient networking, laying down the bases for a new holistic approach to energy-efficient networking, investigating effective strategies and mechanisms to reduce energy consumption in current and future networks in general, and the future Internet in particular. I contributed in the evaluation of elastic optical network to reduce the power consumption in core networks.
  • MAINS: (Metro Architectures Enabling Sub-Wavelengths) I started working on this project in UAM, but I continued in Telefonica. My contribution continued with the Network-Service Interface and we assess sub-wavelength technologies for metropolitan networks from a technical and economic point of view.

Assistant Professor

I started working as an Assistant Professor at the Universidad Autonoma de Madrid in September 2009. I collaborated in HPCN projects:

  • MAINS: (Metro Architectures Enabling Sub-Wavelengths) MAINS proposes two sub-wavelength solutions for metropolitan networks. MAINS will demonstrate the interoperation of both solutions using a common control plane. A second outcome will be the efficient deployment of distributed application servers, by means of a novel service to network interface and an extended GMPLS control plane. I collaborated in the service to network interface definition and the protocol to transfer efficiently the information in the metro network.
  • DEPACO project is a collaboration with Optenet. We developed a platform in FPGA to support 10Gbps packet firewall processing.
  • PASITO: (Plataforma de Analisis de ServIcios de TelecOmunicaciones) PASITO is a Spanish project to deploy a Telecommunication Service Analysis Platform (Plataforma de Analisis de ServIcios de TelecOmunicaciones) whose aim is to develop a distributed network testbed that offers the possibility of creating, debugging and evaluating several telecommunication service test scenarios. I worked on a Multi-layer experiment using PASITO facilities combined with OneLab and Federica resources.
  • ANFORA (Analisis FORense, longitudinAl y ciego de trafico de Internet). ANFORA is focused on traffic analysis from network measurements. Based on the network status, the operator could reconfigure current links. In this project, we developed a Path Computation Element prototype that supports multi-domain algorithms.

From February to August 2010, I was a visiting researcher at University of Essex in the High Performance Networks Group. During this period I worked on the development of an edge node for file-exchange in OBS networks in FPGA.

Ph.D. Candidate

I defended my doctoral thesis on April 17th, 2009. I carried out my research at the Universidad Autonoma de Madrid, Spain and I did an internship for three months at Telecom ParisTech. During this period, I was involved in the following projects:

  • BONE Building the Future Optical Network in Europe. In this project, UAM lead the Topical Project "Edge-to-core adaptation for hybrid networks". My task was to study multi-layer algorithms for IP over WDM networks to more complex scenarios. Moreover, we have worked on the extension of Flow-Aware Networking to IP over WDM scenarios.
  • e-Photon/ONe + Optical networks: Towards bandwidth manageability and cost-efficiency. UAM is the leader of the Joint Project-B: Optical Burst Switching. I started the definition of multi-layer algorithms for IP over WDM networks. Moreover, we carried out research on Optical Burst Switched networks. Another output of this project was the book Enabling Optical Internet with Advanced Network Technologies, where I was chapter editor of the OBS chapter.
  • DIOR This project aims at the evaluation of the foreseen traffic evolution within the Spanish academic network RedIRIS, by means of extensive traffic analysis. We studied the feasibility of OBS architectures in RedIRIS networks.

Researcher

I started my research career at Telefonica I+D. During this period, I worked in the following projects:

  • NOBEL: (Next generation Optical Networks for Broadband Europe Leadership) I collaborated in the requirement, definition and validation specifications for a GMPLS test bed developed in the project. We studied the impact of the new technologies in the Information Society. Furthermore, I developed a ns-2 based OBS simulator to analyze the performance of MRDV (Multipath Rounting with Dynamic Variance) protocol over OBS networks.
  • MUPBED: (Multi-Partner Europeans Testbeds for Research Networking) We define the reference architecture for research networks based on ASON/ GMPLS. We analyzed and defined multilayer integrated models for QoS provisioning.
  • ePhoton/One: I was involved in the analysis of the TCP over OBS (Optical Burst Switching) performance. As a result, an article was accepted in the Telecom I+D 2005. Besides we studied the alternatives for the deployment of FTTx. We submitted a paper called "Overview of the optical broadband access evolution - A joint paper of operators of the IST network of excellence e-Photon/ONe" to the journal "IEEE Communications Magazine" and "IEEE International Conference on Access Technologies".
  • FIRM: (Field trial with Integrated ROADMs and GMPLS compliance) We defined (from the network operator point of view) the requirements and specifications of the ROADM (Reconfigurable Optical Add-Drop Multiplexer) and I analyzed the techno-economic and validation aspects of the ROADM equipment.
  • MUSE: (Multi Service Access Everywhere) We worked in the QoS analysis and definition fot the future services provisioning. We studied the different migration alternatives from the current ADSL service to the new ones.

Master Thesis

I presented the results of my master thesis (M.Sc.) on the 10th of October 2005. Its title was "Development and implementation of the Spacewire protocol in FPGA". The main objective of the project was to develop and implement a Spacewire coder-decoder in a FPGA. I analyzed in detail the ESA Spacewire standard (ECSS-E-50-12 A) to know all the standard requirements. The Spacewire core was programmed in VHDL, using mainly the Xilinx tools.

Two tools were developed during the core development to evaluate the model and to create the necessary test beds for the core validation.

Once the design was developed, the validation testbed created by the Dundee University, in collaboration with the ESA, was followed to validate the Spacewire core. The design was implemented in a Spartan XC2S200E checking its correct operation.

This is only an overview of the project, but if you need more information about the core or the report (only Spanish available) please do not hesitate to contact me. As a result of my master thesis we published an article in the International Spacewire Conference (2007).