Authors:
Roberto D. Amaral
1
;
Francisco Cercas
2
and
Carlos Gonçalves
1
Affiliations:
1
ISCTE-IUL, Portugal
;
2
ISCTE-IUL and Instituto de Telecomunicações (IT), Portugal
Keyword(s):
Digital Terrestrial Television, Personalization, Datacasting.
Related
Ontology
Subjects/Areas/Topics:
Artificial Intelligence
;
Best Practices & Communities of Practice
;
Biomedical Engineering
;
Collaboration and e-Services
;
Communication, Collaboration and Information Sharing
;
Communities of Practice
;
Complex Systems Modeling and Simulation
;
Computer-Supported Education
;
Data Engineering
;
e-Business
;
Enterprise Information Systems
;
Health Information Systems
;
Integration/Interoperability
;
Interoperability
;
Knowledge Management and Information Sharing
;
Knowledge-Based Systems
;
Learning/Teaching Methodologies and Assessment
;
Ontologies and the Semantic Web
;
Sensor Networks
;
Simulation and Modeling
;
Society, e-Business and e-Government
;
Software Agents and Internet Computing
;
Software and Architectures
;
Symbolic Systems
;
Web Information Systems and Technologies
Abstract:
Digital Terrestrial Television (DTT) allows the simultaneous transmission of different digital contents with the video signal, i.e. datacasting. This become possible due to coding and compression technologies used to process the signal, not previously available with analogue technology. This subject created the discussion about the digital dividend, which addresses the best way to use the spectrum, so as to improve its efficiency. This article presents the concept of Personalcasting applied to data, which is sent simultaneously by DTT to the entire coverage area, while directing contents to specific users. This provides a better use of the DTT spectrum, due to high data volume that will be used with datacasting