Results 341 to 350 of about 1,429,207 (385)
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1995
Publisher Summary Gallium Arsenide (GaAs) monolithic microwave integrated circuits (MMICs) are increasingly being used in the design of microwave subsystems for on-board communications satellite and ground terminal applications. Key technology factors contributing to this trend are the relative maturity of MMIC design techniques, improvements in ...
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Publisher Summary Gallium Arsenide (GaAs) monolithic microwave integrated circuits (MMICs) are increasingly being used in the design of microwave subsystems for on-board communications satellite and ground terminal applications. Key technology factors contributing to this trend are the relative maturity of MMIC design techniques, improvements in ...
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Satellite-Based Cellular Communications
IEEE Microwave Magazine, 2000With so many problems besetting potential providers of handheld satellite communications, it would seem that any new entrant would do so with great trepidation. Yet, significant contrasts in implementation philosophies and system embodiments between the various proposed offerings can cause dramatic differences in potential profitability and the overall
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1994
Publisher Summary This chapter provides an overview of satellite communication. Communications satellites are required to illuminate the earth with radio signals and their orbits are chosen according to the size and location of the part of the earth's surface they must light up.
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Publisher Summary This chapter provides an overview of satellite communication. Communications satellites are required to illuminate the earth with radio signals and their orbits are chosen according to the size and location of the part of the earth's surface they must light up.
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Digital Satellite Communications
2007The book addresses the study and design of efficient and flexible physical layers for broadband mobile and fixed satellite links. The chapters focus on long-term developments addressing advanced physical layer techniques for braodband communications, fixed and mobile terminals, and 4G evolutions with possible convergence betwee different technologies ...
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Challenges and Solutions for Cellular Based V2X Communications
IEEE Communications Surveys and Tutorials, 2021Rose Qingyang Hu +2 more
exaly
Orbital angular momentum and beyond in free-space optical communications
Nanophotonics, 2022Jian Wang, Shuhui Li, Yifan Zhao
exaly
What Will the Future of UAV Cellular Communications Be? A Flight From 5G to 6G
IEEE Communications Surveys and Tutorials, 2022Marco Mezzavilla +2 more
exaly
The Economics of Satellite Communications
1987In 1965, Intelsat began commercial service with a single Atlantic satellite having a capacity of 240 voice circuits — enough to accommodate 240 telephone conversations, or one television transmission, simultaneously. It charged $32,000 for a one year lease for one-half of the capacity required for a two-way telephone conversation.
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