On the effects of platform positional instability on a UMTS system served by HAPS

Axiotis, DI; Theologou, ME

dc.contributor.author	Axiotis, DI	en
dc.contributor.author	Theologou, ME	en
dc.date.accessioned	2014-03-01T02:42:18Z
dc.date.available	2014-03-01T02:42:18Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/30928
dc.subject	Dynamic Simulation	en
dc.subject	Mobile Telecommunication	en
dc.subject	High Altitude Platform	en
dc.subject	Universal Mobile Telecommunication System	en
dc.subject.other	Dynamic simulators	en
dc.subject.other	High altitude platform station	en
dc.subject.other	IMT-2000	en
dc.subject.other	Instability model	en
dc.subject.other	International Mobile Telecommunications	en
dc.subject.other	Potential problems	en
dc.subject.other	Soft hand overs	en
dc.subject.other	Station keeping	en
dc.subject.other	Stratospheric winds	en
dc.subject.other	System Capacity	en
dc.subject.other	System-level performance	en
dc.subject.other	UMTS systems	en
dc.subject.other	Universal mobile telecommunications systems	en
dc.subject.other	Mobile telecommunication systems	en
dc.subject.other	Radio communication	en
dc.subject.other	Stability	en
dc.subject.other	Tracking (position)	en
dc.title	On the effects of platform positional instability on a UMTS system served by HAPS	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/PIMRC.2003.1259142	en
heal.identifier.secondary	http://dx.doi.org/10.1109/PIMRC.2003.1259142	en
heal.identifier.secondary	1259142	en
heal.publicationDate	2003	en
heal.abstract	High altitude platform stations (HAPS) are a new, promising means of providing International Mobile Telecommunications (IMT-2000). One of the potential problems of the system is the platform positional instability due to stratospheric winds. In this paper, we present a study of the effect of positional instability on the system level performance of a Universal Mobile Telecommunications System (UMTS) served by HAPS. Measurements of stratospheric winds at an altitude of 21 Km have been used to simulate the positional instability of a HAPS employing a propulsion station keeping mechanism. The platform instability model obtained gives input into a UMTS system level dynamic simulator and the effect of instability on the rate of soft handovers and system capacity is examined. ©2003 IEEE.	en
heal.journalName	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC	en
dc.identifier.doi	10.1109/PIMRC.2003.1259142	en
dc.identifier.volume	3	en
dc.identifier.spage	2368	en
dc.identifier.epage	2372	en