Broadband Communications Systems and Architectures Research Group

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The research group started in 1992 and belongs to the Computer Architecture Department of the Tecnical University of Catalunya (UPC BarcelonaTECH). The University has been granted as Campus of International Excellence (Barcelona Knowledge Campus) and the Computer Architecture Department holds a PhD Program awarded by a Quality Mention with Honors by the Spanish Ministry since 2003.

AGAURThe research group is recognised both as a research group of the UPC and as a consolidated research group of the Catalan Goverment Generalitat de Catalunya (2005SGR-00481 for the period 2005-2008, 2009SGR-1140 for the period 2009-2013, 2014SGR-1427 for the period 2014-2016 and 2017SGR-1037 for the period 2017-2019).

Most of the topics covered by this research group are strongly related with broadband networks and broadband services and applications: switching, protocol development and performance, traffic modeling, network resource management policies and bandwidth allocation, traffic and congestion control, routing strategies,  internetworking, network management, IP and optical networks convergence, quality of service management and transport protocols.


Key research topics are:


Network Architectures

  • Quality of Service in IP networks
  • IPv6 (coexistence and transition)
  • Mobility (Mobile IPv4 and IPv6)
  • MPLS and TE (QoS and Resilience)
  • Inter‐domain routing
  • Future Internet Architectures
  • Locator/Id Split Protocol (LISP). LISPmob
  • Software-Defined Networking (VNF)
  • Network architecture for 5G Networks
  • Network architecture for IoT
  • Machine learning for network management
  • Network Economics
  • Data privacy
  • Security of communications
  • Digital Identity and Electronic Signature

Knowledge-Defined Networking

Optical Networking

  • IP over ASON/GMPLS networks
  • Optical Packet Switching
  • Optical Burst Switching
  • Multilayer/technology Interoperability
  • Protection/restoration
  • Resource management
  • Physical Impairments aware Optical Networks
  • Energy Consumption aware Optical Networks
  • OF/SDN based optical Networks
  • Data Centers inter/intra connection

Green Networking

  • Energy‐aware algorithms and protocols for telecommunication networks
  • Energy‐aware Routing and Wavelength Assignment algorithms
    • Heuristics and ILP formulations
  • Energy‐aware OSPF‐TE extensions for reducing GHG emissions
  • Energy‐oriented Network Re‐optimization
  • Energy models
  • Renewable energy sources

Nanonetworking Communications

  • Molecular communications
  • EM Nano‐sensor networks (in the THz band)
  • Channel modelingNanonetwork architectures
  • General purpose simulator


  • Wireless Network-on-Chip
  • Graphene Wireless Communications
  • Coding and Modulation
  • MAC protocols for NoC



The Broadband Communications Systems and Architectures Research Group (CBA) is a founding member of the Advanced Broadband Communications Center (CCABA) of the UPC.


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