Reference : Resource allocation for cognitive satellite uplink and fixed-service terrestrial coex...

	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a journal
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering
	To cite this reference:	http://hdl.handle.net/10993/26432

Title :	Resource allocation for cognitive satellite uplink and fixed-service terrestrial coexistence in ka-band
Language :	English
Author, co-author :	Lagunas, E. [Interdisciplinary Centre for Security, Reliability and Trust (SnT), University of Luxembourg, Walferdange, Luxembourg]
	Sharma, Shree Krishna [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >]
	Maleki, Sina [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >]
	Chatzinotas, Symeon [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >]
	Grotz, J. [Technical Labs, Newtec, Belgium]
	Krause, J. [SES, Betzdorf, Luxembourg]
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) >]
Publication date :	2015
Journal title :	Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Publisher :	Springer Verlag
Volume :	156
Pages :	487-498
Peer reviewed :	Yes
Audience :	International
ISSN :	18678211
Event name :	10th International Conference on Cognitive Radio Oriented Wireless Networks, CROWNCOM 2015
Event date :	21 April 2015 through 23 April 2015
Keywords :	[en] Cognitive radio ; Resource Allocation ; Satellite communications ; Cognitive systems ; Frequency bands ; Geostationary satellites ; Microwave links ; Orbits ; Resource allocation ; Satellite communication systems ; Satellites ; Wireless networks ; Carrier allocation ; Cognitive approaches ; Fixed satellite services ; Geo-stationary orbits ; Interference constraints ; Satellite terminals ; Transmitted power
Abstract :	[en] This paper addresses the cognitive Geostationary Orbit (GSO) satellite uplink where satellite terminals reuse frequency bands of Fixed-Service (FS) terrestrial microwave links which are the incumbent users in the Ka 27.5-29.5 GHz band. In the scenario considered herein, the transmitted power of the cognitive satellite user has to ensure that the interference impact on potentially present FS links does not exceed the regulatory interference limitations. In order to satisfy the interference constraint and assuming the existence of a complete and reliable FS database, this paper proposes a Joint Power and Carrier Allocation (JPCA) strategy to enable the cognitive uplink access to GSO Fixed Satellite Service (FSS) terminals. The proposed approach identifies the worst FS link per user in terms of interference and divides the amount of tolerable interference among the maximum number of FSS terminal users that can potentially interfere with it. In so doing, the cognitive system is guaranteed to never exceed the prescribed interference threshold. Subsequently, powers and carriers are jointly allocated so as to maximize the throughput of the FSS system. Supporting results based on numerical simulations are provided. It is shown that the proposed cognitive approach represents a promising solution to significantly boost the performance of conventional satellite systems. © Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2015.
Funders :	EC, European Commission
Permalink :	http://hdl.handle.net/10993/26432
DOI :	10.1007/978-3-319-24540-9_40
Commentary :	152139 9783319245393

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