The research group started in 1992 and belongs to the Computer Architecture Department of the Tecnical University of Catalunya (UPC) and 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 and 2009SGR-1140 for the period 2009-2013).

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, quality of service management and transport protocols.

Key research topics are: capture and traffic analysis, traffic modeling, traffic engineering, congestion control, switching and routing protocols. These issues within the group are developed for both IP / MPLS as well as for optical networks. In the latter case are included the development of control plane protocols and network physical level

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