High Altitude Platform
Application of Single Mode Fiber Coupled Receivers in Optical Satellite to High Altitude Platform Communications
... In a free-space optical communication system employing fiber-optic components, the phasefront distortions induced by atmo- spheric turbulence limit the efficiency with which the laser beam is coupled into a single-mode ...
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Coexistence Performance of High Altitude Platform and Terrestrial Systems Using Gigabit Communication Links to Serve Specialist Users
... the high data rates involved. Using gigabit links from a high-altitude platform (HAP) will provide one possible solution to overcome these delivery prebroadcast material problems, at least for ...
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1. An improvised scattering study for elevation reliant on 3g communications through high altitude platform (hap)
... communications, High Altitude Platform (HAP) evolved as a communication segment acting like a lower amplitude ...maintains high elevation angles over a coverage area than terrestrial ...A ...
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WCDMA Uplink Interference Assessment from Multiple High Altitude Platform Configurations
... We investigate the possibility of multiple high altitude platform (HAP) coverage of a common cell area using a wideband code division multiple access (WCDMA) system. In particular, we study the ...
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Co-channel interference studies between high altitude platform and terrestrial system in Malaysia
... the high altitude platform to terrestrial ...between High altitude platform networks and terrestrial system involves time varying phenomena such as interference geometry, Real ...
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Optimizing an array of antennas for cellular coverage from a high altitude platform
... a high altitude platform (HAP) the cochannel interference is a func- tion of the antenna beamwidth, angular separation and sidelobe ...the platform is a practicable solution for serving the ...
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Cosine Alpha Tapered Beamforming Window for Uniform Concentric Circular Array using in High Altitude Platform System
... in High Altitude Platform communications system, that it can perform 360 degree scan around its ...and high capacity so Beamforming techniques are used which can increase the power of the ...
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Forward link power control for high altitude platform station w-cdma system
... for High Altitude Platform Stations Providing IMT-2000 in the bands 1885-1980 MHz, 2010-2025 MHz and 2110-2170 MHz in Regions 1 and 3 and 1885- 1980 MHz and 2110-2160 MHz in Region 2,” ...
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A Novel Technique to improve the Performance of Wireless Sensor Network using Adaptive Antennas and High Altitude Platform Communications
... very high sink station that may be located on a very high mast or ...the High-Altitude Platform (HAP) [5-8] has gained interest in research for WSN and has been proved for the existing ...
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Multi beam coverage and beamforming technology for high altitude platform station communication system
... in high altitude platform station (HAPS) communication is another major factor affecting and limiting system performance in addition to channel fad- ...
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Effect of lateral displacement of a high-altitude platform on cellular interference and handover
... a high-altitude platform (a quasi- stationary platform in the stratosphere) is ...the platform drift, and the CIR distribution is ...
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Performance Evaluation of WiMAX Broadband from High Altitude Platform Cellular System and Terrestrial Coexistence Capability
... Currently, most HAP research papers adopt the free space path loss (FSPL) presented in (6) as the propagation model used for HAP transmission, where d is distance from the transmitter and λ is the signal wavelength. ...
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Handoff Study of Ring Shaped Cellular Configuration Designed for High Altitude Platform Communications
... [4] Jun, W., Chu, Y. K., and Bin, T. 2010. Downlink Capacity of High Altitude Platforms CDMA Systems in Ricean Channel. In Proceedings of the 2nd International Conference on Computer and Automation ...
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Downlink Coexistence Performance Assessment and Techniques for WiMAX Services from High Altitude Platform and Terrestrial Deployments
... applicable in the 3.5 GHz frequency band. It should also be noted that directional user antennas are likely to be installed at a fixed location with this scenario. High-elevation angles owing to the relatively ...
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A Novel Technique to Improve the Performance of Wireless Sensor Network using Adaptive Antennas and High Altitude Platform
... [9] Mostafa Nofal, Yasser Albagory, Moawad Dessouky, Mohiy Hadhoud, ―Performance and Feasibility of Different Switched-Beam Antennas for Stratospheric Platform Mobil Communications Covering Newly Developing ...
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System design of the physical layer for Loon’s high altitude platform
... using 2 × 1 MIMO improves LTE performance by 1.4 to 12.3 dB and that using 2 × 2 MIMO can improve the performance by 7.7 to 15.7 dB. This research uses data from [17] to model the channel as an elevation- dependent ...
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A WiMAX Payload for High Altitude Platform Experimental Trials
... The combined WiMAX and optical payloads are to be housed in a spherical pressure chamber for deployment in the stratosphere. The sphere diameter is 750 mm. This layout dictates much of the mechanical design, which is ...
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Design Considerations for 5G Mobile Network
... With the advent of mobile technologies, communication is no longer a stationary element. In addition, with gradual sophistication of the technologies, the need for communication is no longer confined to voice only. Now, ...
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Performance of CDMA power control for HAPS
... In those papers, HAPS movement assumed to be compensated by appropriate station keeping mechanism by steering the beams electronically. This assumption refers to an ideal condition of HAPS which is impossible situation ...
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Autonomously Coordinated Multi-HAPS Communications Network: Failure Mitigation in Volcanic Incidence Area Coverage.
... self-organising High Altitude Platform Stations (HAPS) are proposed as an optional and less expensive infrastructure to provide area communications and sensor coverage over the affected ...
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