Advanced mobile communication systems. Heterogeneous 4G / 5G networks

In this thematic area, the main topics addressed in recent years in the team are:

In the field of advanced mobile communication systems and heterogeneous networks 4G/5G:

  • Optimized design and management of the MAC level in wireless technologies LTE / LTE-A, IEEE 802.11a / b / g / n / ac, Bluetooth. Optimized design and management of advanced management procedures and support for radio mobility and resource management (RRM) on the radio interface, including spectrum and interference management, among others. Emphasis on WiFi access networks and 4G / 5G LTE networks in licensed and unlicensed bands and ultra-dense deployments.
  • Planning, reconfiguration and / or optimization of planned deployments and nomadic deployments of 4G mobile and wireless networks for commercial systems and public safety and emergency systems (mission critical systems). Optimization of radio resources in heterogeneous access networks.
  • Mesh technologies and deployment. Development of mechanisms to improve coordination / coexistence between nodes, especially in places where the spectrum is saturated, such as urban areas and blocks of flats.
  • Softwarización(SDN)  and network functions virtualization (NFV).
  • Autonomous configuration, reconfiguration and / or optimization. Application of analytics and data and machine learning techniques for diagnosis, prediction and decision making.
  • Development of solutions for IoT 4G/5G, including also smaller-scope technologies, particularly Bluetooth Low Energy.
  • Development of solutions for dynamic allocation of resources (identification of sensors, selection of routes, scheduling of radio resources) through the design of computationally efficient algorithms that optimize both the quality of service of the applications and the efficient use of the network (energy consumption, computational, etc.).
  • Evaluation of networked multimedia systems. Methodologies to estimate the perceived quality (QoE) from network parameters. Methods for establishing the relationship between the objective parameters of the network and the subjective quality experienced by the end user. For example, this includes subjective assessment of the quality of voice over IP, video, and online games.
  • Optimization of data flow and use of resources in networks through the application of advanced compression mechanisms, multiplexing or combinations of both.
  • Development of improved mechanisms at the network level for a better provision of services in real time such as VoIP, online games, videoconferencing and medical telecare.

In the field of Transmission Systems:

  • Development of advanced solutions (HW and SW) for the most advanced 4G / 5G wireless technologies and mobile communication systems both for public use and in the context of systems for public safety and emergencies (mission critical systems). C-RAN architectures. New 5G waveforms and multiple access schemes.
  • Signal processing for the design of reconfigurable, energy-efficient wireless transceivers. Linearization and optimization of amplifiers, architecture design of hybrid radio-fiber transmission systems (HRF) with MIMO, multiband and broadband antennas, for application in 5G network deployments.
  • Design, implementation and verification of adaptive impedance synthesis circuits for multiband systems.


Redes y sistemas de comunicaciones móviles 4G/5G