About: Hybrid Cognitive Approach for Femtocell Interference Mitigation

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	In this paper, we introduce new concept for femtocells with the purpose to minimize cross-tier interference to the macrocell users (MUEs). The cross-tier interference is mitigated by the power control algorithm minimizing the power level and, thus, ensuring that all currently active femto users (FUEs) can attach to the femto access points (FAPs). To guarantee quality of service to the FUEs even at heavy load, despite low transmitting power, the FAPs can opportunistically utilize also SU bands. To that end, we denote our scheme as a hybrid cognitive approach, which is distinguished by the fact that the FAPs can access bandwidth as a primary users (PU) and secondary users (SU) at the same time. In order to generate less overhead introduced by sensing for the purpose of determining available spectrum, we also propose an algorithm that adaptively changes a sensing period. The results show that our proposal is able to significantly reduce cross-tier interference nearly to the same level as achieved by algorithms focusing on maximization of the MUEs' performance. At the same time, our proposal ensures that the performance of the FUEs is kept at satisfactory level similarly as in the case of the algorithms focusing solely on the performance of the FUEs. In this paper, we introduce new concept for femtocells with the purpose to minimize cross-tier interference to the macrocell users (MUEs). The cross-tier interference is mitigated by the power control algorithm minimizing the power level and, thus, ensuring that all currently active femto users (FUEs) can attach to the femto access points (FAPs). To guarantee quality of service to the FUEs even at heavy load, despite low transmitting power, the FAPs can opportunistically utilize also SU bands. To that end, we denote our scheme as a hybrid cognitive approach, which is distinguished by the fact that the FAPs can access bandwidth as a primary users (PU) and secondary users (SU) at the same time. In order to generate less overhead introduced by sensing for the purpose of determining available spectrum, we also propose an algorithm that adaptively changes a sensing period. The results show that our proposal is able to significantly reduce cross-tier interference nearly to the same level as achieved by algorithms focusing on maximization of the MUEs' performance. At the same time, our proposal ensures that the performance of the FUEs is kept at satisfactory level similarly as in the case of the algorithms focusing solely on the performance of the FUEs. (en)
Title	Hybrid Cognitive Approach for Femtocell Interference Mitigation Hybrid Cognitive Approach for Femtocell Interference Mitigation (en)
skos:prefLabel	Hybrid Cognitive Approach for Femtocell Interference Mitigation Hybrid Cognitive Approach for Femtocell Interference Mitigation (en)
skos:notation	RIV/68407700:21230/14:00224892!RIV15-GA0-21230___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GP13-24931P)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Bečvář, Zdeněk Mach, Pavel
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	20035
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/14:00224892
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	interference mitigation; femtocell; cognitive capabilities; sensing; power control (en)
http://linked.open.../riv/klicoveSlovo	power control femtocell interference mitigation sensing cognitive capabilities
http://linked.open...ontrolniKodProRIV	[6AF89964C9F5]
http://linked.open...v/mistoKonaniAkce	Nice
http://linked.open...i/riv/mistoVydani	Silicon Valley
http://linked.open...i/riv/nazevZdroje	The Thirteenth International Conference on Networks Proceeding
http://linked.open...in/vavai/riv/obor	JA
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	New methods for capacity improvement of heterogeneous wireless networks based on hybrid cognitive approach and small cells
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Bečvář, Zdeněk Mach, Pavel
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2014-02-23 (xsd:date)
number of pages	8 (xsd:int)
http://purl.org/ne...btex#hasPublisher	International Academy, Research and Industry Association (IARIA)
https://schema.org/isbn	978-1-61208-318-6
http://localhost/t...ganizacniJednotka	21230

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