• Layered Division Multiplexing (LDM), which grew out from the Cloud-Txn concept, is a research project to enhance the capacity of the new generation broadcasting systems
  • It is a cooperation project between CRC Canada, ETRI Korea and University of Basque Country (UPV/EHU)-TSR group Spain.


images pablo.angueira(at)



The University of the Basque Country (UPV/EHU) is a public research and teaching institution formed 30 faculties and colleges. The personnel involved in the development of the LDM technology belongs to the Department of Communication Engineering at the Faculty of Engineering in Bilbao (Spain).

Since the early 90’s the UPV/EHU has been involved in the development and testing of different broadcast Standards around the world. The research has contributed to Digital Video Broadcasting – Terrestrial (DVB-T), Digital Audio Broadcasting (DAB), Digital Radio Mondiale (DRM), Digital Video Broadcasting (2nd Gen. Terrestrial) (DVB-T2) and DVB Next Generation Handheld.

The team involved in LDM (TSR Lab) is today a world class reference for research in broadcasting. TSR Lab has an outstanding research record during the last ten years, having published more than 50 contributions to international journals, over 90 presentations in international conferences, several books and book chapters as well as numerous reports and contributions to different standardization fora.

The UPV/EHU is involved in a number of standardization organizations around the world such as the ITU-R (International Telecommunications Union-Radiocommunication Sector), ATSC, DVB, DRM and contributes regularly to others such as the EBU (European Broadcasting Union).

University of Basque Country (UPV/EHU)



The Communications Research Centre Canada (CRC) is a Canadian government scientific laboratory for research and development in wireless technologies, with a particular focus on the efficient use of radio frequency spectrum. Its mission is as follows:

  • To perform wireless telecommunications research and development (R&D) that advances the efficient use of the radio spectrum, and serves as the government’s leading source of scientific knowledge and technical advice for spectrum management, regulation and policy purposes;
  • To support critical wireless telecommunications operational requirements of Government of Canada departments and agencies, such as National Defence and Public Safety;
  • To take part in strategic R&D collaborations that leverage CRC’s activities, resulting in knowledge and technology transfer that benefit Canadian industry, the economy and Canadians.

The CRC contributed to many “firsts” in Canadian communications, a number of which involved satellite communications, wireless systems; radio fundamentals, e.g., Software Defined Radio;[8] communication networks; photonics and interactive multimedia.

Communications Research Center


ETRI Electronics and Telecommunications Research Institute

Established in 1976, ETRI is a non-profit government-funded research institute that has been at the forefront of technological excellence for more than 25 years. ETRI has successfully developed information technologies such as TDX-Exchange, High Density Semiconductor Microchips, Mini-Super Computer (TiCOM), Digital Mobile Telecommunication System (CDMA), and High Speed Data Transfer at 3 Gbit/s and many others. The Broadcasting & Telecommunications Convergence Research Laboratory has been actively developing, under the vision of leading the New Technology of Broadcasting & Telecommunications Convergence for a Greater Korea, key technologies in the areas of broadcasting, IPTV, radio, and satellite, for realizing a future knowledge-based society enabled by naturally integrating broadcasting and telecommunications services into life. With next generation broadcasting-telecommunications convergence, realistic media and radio-satellite defined as three major areas, we put our efforts into realizing four services (Cognitive WPAN, Stereoscopic 3DTV, Advanced T-DMB and Wired-wireless-convergent mobile IPTV) and into developing five future source technologies (Gbps satellite broad band transmission, mm-wave/T-Hz radio resource and RF energy transfer, Digital Holography, Glasses-free super-multiview 3D broadcasting and Personalized u-IPTV) to contribute greatly to enhancing the convenience and safety of people as well as boosting national industry and economy.

Electronic and Telecommunications Research Institute



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