Control and supervision of a digital broadcast network

Author(s):  
M. Kneip
Author(s):  
Georgios Gardikis ◽  
Harilaos Koumaras ◽  
Anastasios Kourtis

Following the success and wide adoption of the European Digital Video Broadcasting for Terrestrial (DVB-T) standard for digital terrestrial television, numerous coordinated research efforts on digital broadcast technology resulted in the recent standardization of Digital Video Broadcasting for Handeld Devices (DVB-H). The new specification aims at defining the physical and link-layer level of a digital broadcast network for Internet protocol (IP) datacasting services. At its core, DVB-H is based on DVB-T but it is more oriented in mobile and stationary reception by handheld devices. This article attempts a brief though thorough overview of the new technology, its technical aspects, and its new application perspectives.


2003 ◽  
Author(s):  
W.B. Sessa ◽  
R. Welter ◽  
M.W. Maeda ◽  
R.E. Wagner ◽  
R.S. Vodhanel ◽  
...  
Keyword(s):  

2011 ◽  
Vol 18 (4) ◽  
pp. 1193-1199 ◽  
Author(s):  
Yin Xia ◽  
Ti-yuan Zhang ◽  
Jia-qing Huang

2018 ◽  
Vol 18 (05) ◽  
pp. 455-462 ◽  
Author(s):  
Emir Haliki

AbstractAccording to the Kardashev scale, likely extraterrestrial civilizations above Type-I might use natural energy sources of the Universe, which is also true for transmitting their signals out to distances. A variety of studies have shown that radio pulsars are most likely candidates for this. First, the current study examined how the radio beams of pulsars scan across their environment. Later when the radio beams of pulsars have been modulated, a network model has been proposed on how many habitable planets possible to be home for other assumed advanced civilizations could be reached. It has been found that size of each pulsar's broadcast network depends on the inclination angle. If a civilization controls multiple pulsars, it could comb a considerable fraction of their own celestial sphere and pulsars share their signals in a decentralized fashion as in the mail servers. Moreover, it is briefly cited how beam-modulating mechanisms can be built and searched around pulsars.Highlights •  It has been shown how pulsars would behave like beacons only when they have been used by modulating their radio signals.•  It has also been indicated how each pulsar could constitute an increasingly growing broadcast network by sweeping geometries and in what way it would emerge as number of controlled pulsars increases.•  It has been interpreted how a modulation mechanism could be established and searched under basic physical principles.


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