Interference Environment Between High Altitude Platform Networks (HAPN), Geostationary (GEO) Satellite and Wireless Terrestrial Systems

Authors:
Vasilis F. Milas;Philip Constantinou
Affiliations:
Mobile Radio Communications Laboratory, School of Electrical & Computer Engineering, National Technical University of Athens, Athens, Greece GR 15773;Mobile Radio Communications Laboratory, School of Electrical & Computer Engineering, National Technical University of Athens, Athens, Greece GR 15773
Venue:
Wireless Personal Communications: An International Journal
Year:
2005

Citing 5
Cited 2

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Wireless Personal Communications: An International Journal
Integration of a HAP within a Terrestrial UMTS Network: InterferenceAnalysis and Cell Dimensioning

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Preliminary Flight Test Program on Telecom and Broadcasting Using HighAltitude Platform Stations

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Establishing wireless communications services via high-altitude aeronautical platforms: a concept whose time has come?

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Spectrum Correlated Criteria and Their Impacts on High Altitude Platform Station (HAPS) and Fixed Satellite Service (FSS) Coexistence in Frequency Range 5,850---7,075 MHz

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Statistical Prediction Model for the HAPS Gateway Link and Fixed Satellite Service Interoperability at 5850---7075 MHz

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Abstract

A new broadband telecommunication system has been recently proposed for provision of fixed, mobile and personal services adopting the use of high altitude platform stations placed in a fixed position in the stratospheric layer at heights from 15.5 to 30 km. The International Telecommunication Union (ITU) has allocated a pair of 300 MHz of spectrum in the V band for these services, which is already in use by geostationary satellite and wireless terrestrial systems as co-primary allocations. This paper addresses an in-depth co-channel interference analysis and proposes a C/I (carrier-to-interference) calculation model applicable to all the interference propagation paths as well as sharing criteria between HAPN, GEO satellite and wireless terrestrial systems extracted from simulations performed in urban, suburban and rural environments. By evaluating the interference density cumulative probability distribution functions, sufficient geographical separation distances between the ground stations are proposed which guarantee the harmonic co-existence between the three broadband systems. Maintaining the platform stable in the stratosphere is a key issue, and in this paper the effect of the three different stratospheric platform's movement models (ITU, HELINET, HALO) appearing in the literature, on C/I levels is estimated.