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IEEE Communications Surveys & Tutorials 4th Quarter 20062 he trend in designing future global communication net-
 

Summary: IEEE Communications Surveys & Tutorials 4th Quarter 20062
he trend in designing future global communication net-
works is to offer fast and integrated service to ubiquitous
users on-demand, any time [1, 2]. In order to provide
complete coverage to a diverse population, satellites will play
an integral part in the future global communication infra-
structure [13]. First-generation satellite-based communica-
tion systems (e.g., Iridium, Globalstar, Odyssey, ICO, Ellipso)
were proposed in the early 1990s, and were primarily intended
to carry only voice and low-speed data traffic [2]. However,
due to the competition from terrestrial broadband, meshed,
and WIMAX networks [4], lack of real market incentives and
some inconvenient LEO satellite characteristics (i.e., price,
size, and complexity of terminals), most of these projects
failed. Currently, we are going through an era of high-speed
worldwide Internet where the global information network
should offer bandwidth-intensive multimedia data services. In
order to fulfill these requirements, a new generation of satel-
lite communications (SATCOM) networks, called broadband
satellite networks, has been proposed. Astrolink, Cyberstar,

  

Source: Atiquzzaman, Mohammed - School of Computer Science, University of Oklahoma

 

Collections: Computer Technologies and Information Sciences