Reference : Inline Interference Mitigation Techniques for Spectral Coexistence of GEO and NGEO Sa...

	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering
	To cite this reference:	http://hdl.handle.net/10993/11134

Title :	Inline Interference Mitigation Techniques for Spectral Coexistence of GEO and NGEO Satellites
Language :	English
Author, co-author :	Sharma, Shree Krishna [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Chatzinotas, Symeon [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	Oct-2013
Main document title :	Proceedings of 19th ka band and 31st AIAA ICSSC conference
Peer reviewed :	Yes
Audience :	International
Event name :	19th Ka band and 31st ICSSC conference
Event date :	14-17 October
Event organizer :	AIAA
Event place (city) :	Florence
Event country :	Italy
Keywords :	[en] Satellite Communications ; Cognitive Radio Techniques ; Dual Satellite Coexistence ; O3b Satellites
Abstract :	[en] The requirement of low latency for real time systems and high demand of broad- band data are leading to the rapid deployment of Low Earth Orbit (LEO)/Medium Earth Orbit (MEO) satellite systems in several frequency bands. When the number of usable non-geostationary (NGEO) satellites i.e., LEO/MEO in space increases, the need for frequency coexistence between the NGEO satellite systems with the already existing geostationary (GEO) satellite networks increases rapidly. In this context, it is crucial to explore interference mitigation techniques between GEO and NGEO systems in order to allow their spectral coexistence. More specifically, in the coexistence scenario of GEO and NGEO satellite networks, in-line interfer- ence may be a serious problem and it arises whenever an NGEO satellite passes through a line of sight path between a GEO earth station and a GEO satellite. In this paper, we carry out interference analysis between GEO and NGEO systems considering the case of O3b satellite systems and propose an adaptive power control technique for both the uplink and the downlink coexistence scenarios in order to mitigate the in-line interference. Furthermore, we provide several cognitive solu- tions for mitigating the in-line interference.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/10993/11134

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