Reference : SDR Implementation of a Testbed for Real-Time Interference Detection with Signal Canc...

	Document type :	Scientific journals : Article
	Discipline(s) :	Engineering, computing & technology : Electrical & electronics engineering
	To cite this reference:	http://hdl.handle.net/10993/35443

Title :	SDR Implementation of a Testbed for Real-Time Interference Detection with Signal Cancellation
Language :	English
Author, co-author :	Politis, Christos []
	Maleki, Sina [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Merlano Duncan, Juan Carlos [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
	Krivochiza, Jevgenij [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 :	2018
Journal title :	IEEE Access
Publisher :	Institute of Electrical and Electronics Engineers (IEEE)
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	2169-3536
City :	Piscataway
Country :	NJ
Keywords :	[en] SDR ; USRP ; interference detection ; real-time testbed ; satellite
Abstract :	[en] Interference greatly affects the quality of service of wireless and satellite communications, having also a financial impact for the telecommunication operators. Therefore, as the interfering events increase due to the deployment of new services, there is an increasing demand for the detection and mitigation of interference. There are several interference detectors in the literature, evaluated by using extensive simulations. However, this paper goes one step further, designing, implementing and evaluating the performance of the developed interference detection algorithms experimentally using a software defined radio, and particularly the universal software radio peripheral platform. A realistic communication system is implemented, consisting of a transmitter, a channel emulator and a receiver. Based on this system, we implement all the appropriate communications features such as pulse shaping, synchronization and demodulation. The real-time system implementation is validated and evaluated through signal and interference detection. We observe that the interference detection threshold is critical to the functioning of the system. Several existing interference detection techniques fail in practice due to this fact. In this paper, we propose a robust and practically implementable method the selection of threshold. Finally, we present real-time experimental results for the probabilities of false alarm and detection in order to verify the accuracy of our study and reinforce our theoretical analysis.
Research centres :	Interdisciplinary Centre for Security, Reliability and Trust (SnT) > Applied Security and Information Assurance Group (APSIA)
Funders :	Fonds National de la Recherche - FnR
Name of the research project :	SATSENT
Target :	Researchers ; Professionals ; Students ; General public ; Others
Permalink :	http://hdl.handle.net/10993/35443
FnR project :	FnR ; FNR8225172 > Symeon Chatzinotas > SATSENT > SATellite SEnsor NeTworks for spectrum monitoring > 01/04/2015 > 31/03/2018 > 2014

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