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Overview of the DVB‐SH specifications
Author(s) -
Kelley Philip
Publication year - 2009
Publication title -
international journal of satellite communications and networking
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.388
H-Index - 39
eISSN - 1542-0981
pISSN - 1542-0973
DOI - 10.1002/sat.935
Subject(s) - digital video broadcasting , computer science , telecommunications , context (archaeology) , service (business) , reuse , ultra high frequency , channel (broadcasting) , dvb t , synchronization (alternating current) , computer network , orthogonal frequency division multiplexing , paleontology , ecology , economy , economics , biology
This article provides an overview of the DVB‐SH specifications, and the context within which they have been developed. The main DVB‐SH configurations are introduced, with explanations of both the technical and frequency planning considerations that drive choices. Regulatory aspects in the European Union and United States of America are summarized. Then specific DVB‐SH issues are being addressed, involving reception conditions and channel characteristics, combining techniques for satellite and terrestrial signals, and synchronization and local content insertion. Some attention is paid to the reuse of DVB link and application layer features. Finally, a couple of likely service introduction scenarios are suggested. It is claimed that DVB‐SH fulfills the initial requirements of extending the present UHF‐based service offer to other frequencies below 3 GHz with a large area coverage, a reduced total network infrastructure cost and an expansion of the offer in terms of number of TV channels or multimedia services. Copyright © 2009 John Wiley & Sons, Ltd.