Reference : Implementation Issues of Cognitive Radio Techniques for Ka-band (17.7-19.7 GHZ) SatComs

	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/10993/18020

Title :	Implementation Issues of Cognitive Radio Techniques for Ka-band (17.7-19.7 GHZ) SatComs
Language :	English
Author, co-author :	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, Joel []
	Ottersten, Björn [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Publication date :	Sep-2014
Main document title :	Proceedings of 7th ASMS/13th SPSC
Peer reviewed :	Yes
On invitation :	No
Audience :	International
Event name :	7th Advanced Satellite Multimedia Systems Conference and 13th Signal Processing for Space Communications Workshop
Event date :	8-09-2014 to 10-09-2014
Keywords :	[en] Cognitive Radio ; Satellite Communications ; Spectrum Sensing ; Interference Detection
Abstract :	[en] The usable satellite spectrum has become scarce due to continuously increasing demand for broadband multimedia, broadcast and interactive services. In this context, investigating efficient spectrum coexistence techniques is a crucial challenge in order to enhance the spectral efficiency of future satellite systems. Herein, we study a satellite-terrestrial coexistence scenario where a Fixed Satellite Service (FSS) downlink coexists with the Fixed Service (FS) point to point microwave links in the Ka-band (17.7-19.7 GHz). First, we identify various practical challenges and provide possible solutions in order to allow this coexistence. Then we propose four different sensing and avoidance schemes in order to protect FSS satellite terminals from the harmful FS interference. Further, we evaluate the performance of one of the proposed solutions in the considered scenario with the help of theoretical and numerical analysis. More specifically, we focus on harmful FS detection problem in order to guarantee the sufficient protection of FSS terminals. It is shown that the FS harmful interference can be reliably detected with the help of an additional dipole antenna and this solution further overcomes the noise uncertainty problem encountered while sensing with the satellite dish.
Target :	Researchers ; Professionals ; Students ; Others
Permalink :	http://hdl.handle.net/10993/18020
Framework Programme / European Project :	FP7 ; 316779 - CORASAT - COgnitive RAdio for SATellite Communications

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