Broadband Communications via High-Altitude Platforms by David Grace

By David Grace

A distinct booklet with systematic and thorough assurance of HAP similar matters, difficulties and recommendations. Handbook of Broadband Communications from excessive Altitude Platforms presents a radical review and cutting-edge of the HAP allowing applied sciences, in addition to describing fresh study actions with such a lot promising effects. It outlines the roadmap for destiny improvement of HAPs.

  • Focuses on putting HAPs within the viewpoint of present and destiny broadband instant verbal exchange structures, supplying the readers with an summary of the limitations affecting HAP-based broadband communications
  • Provides a radical review of HAP allowing applied sciences, describes contemporary examine actions with so much promising effects, and descriptions the roadmap for destiny improvement of HAPs
  • Covers allowing applied sciences and economics of HAP-based conversation procedure together with matters regarding aeronautics, energetics, working eventualities, purposes and enterprise modeling
  • Examines the working surroundings, complicated conversation thoughts for effective radio hyperlink source administration, and appropriate antennas
  • Addresses multiplatform constellations, providing the a number of HAP constellation making plans strategy and discussing the networking implications of utilizing a number of HAPs

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5 StratXX X-Station Airship in development in 2007 [33]. Reproduced by permission of Ó StratXX Near Space Technologies AG StratXX is located in Switzerland, and it uses a number of European strategic partners from industry and academia, including CSEM (Switzerland), DLR (Germany), EPFL (Switzerland), RUAG Aerospace (Switzerland), and University of York (UK), as well as its own in-house expertise. 2 ERS srl ERS srl [34] is a small Italian company that is planning to initially use stratospheric manned plane-based technologies, including the Grob G520T and G600, to deliver a range of services from communications and remote sensing payloads.

These problems are recently being investigated from the perspective of cognitive radio and dynamic spectrum assignment, which may play an important role in interference avoidance and consequently adoption of HAP systems. 2 IEEE 802 Wireless Standards IEEE 802 has developed an alternative series of wireless Internet standards [63]. The main intent is to bring to market low-cost products that serve customer needs. Much of the work involves license-exempt spectrum, which removes the spectrum acquisition costs from the economic picture.

LMDS is also a LOS microwave-based transport technology, typically serving a very small Introduction 25 regional area in the order of a few kilometres. However, LMDS uses much higher radio frequencies than MMDS, since these systems operate at frequencies above 10 GHz, typically between 26 GHz and 31 GHz; as a consequence LMDS has more bandwidth, typically in the order of 1 or 2 GHz. Being developed for multipoint distribution services, MMDS and LMDS are particularly appealing for the provision of asymmetric broadcast/multicast services to fixed users via HAPs, LMDS in particular due to the operating frequency band similar to that of HAPs.

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