REALMARS

RESEARCH ON LOCATION ESTIMATION IN MULTI-CARRIER SYSTEMS

Coordinatore	ISTANBUL TEKNIK UNIVERSITESI    more  Organization address address: AYAZAGA KAMPUSU city: ISTANBUL postcode: 34469 contact info Titolo: Ms. Nome: Sevgi Cognome: Ural Email: send email Telefono: 902123000000 Fax: 902123000000
Nazionalità Coordinatore	Turkey [TR]
Totale costo	50˙000 €
EC contributo	50˙000 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-IRG-2008
Funding Scheme	MC-IRG
Anno di inizio	2009
Periodo (anno-mese-giorno)	2009-07-15   -   2011-07-14

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	ISTANBUL TEKNIK UNIVERSITESI  Organization address address: AYAZAGA KAMPUSU city: ISTANBUL postcode: 34469 contact info Titolo: Ms. Nome: Sevgi Cognome: Ural Email: send email Telefono: 902123000000 Fax: 902123000000	TR (ISTANBUL)	coordinator	18˙493.15
2	TURKCELL ILETISIM HIZMETLERI A.S.  Organization address address: MESRUTIYET CADDESI TURKCELL PLAZA 71 city: "TEPEBASI, ISTAMBUL" postcode: 34430 contact info Titolo: Ms. Nome: Sevgi Cognome: Ural Email: send email Telefono: +90 212 285 3084 Fax: -	TR ("TEPEBASI, ISTAMBUL")	participant	31˙506.85

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 Obiettivo del progetto (Objective)

'Multi-carrier (MC) transmission, in particular orthogonal frequency division multiplexing (OFDM), is employed in various systems mainly due to its robustness. In particular, with the deployment of WiMAX (and the upcoming LTE) systems, research in OFDM hastened. In OFDM systems, smart antenna systems with multiple transmit and receive antennae and location estimation are likely to be an area of interest. In recent years, adaptive antennae and array processing greatly impacted the performance of wireless communication systems. Also, location based services are gaining importance everyday increasing the need for better location estimation algorithms. In this work, we propose to investigate one of the most essential issues of adaptive antenna systems: the estimation of angles of arrival (AOA) for OFDM systems and its utilization in location estimation and development of location based services. The main advantage for location estimation using angles compared to distance (timing advance) is that instead of three reference points, only two reference points are sufficient. In our work, we propose to use basis selection (BS) algorithms, namely the matching pursuit (MP) algorithms for AOA and location estimation, by exploiting the sparsity property of AOA for OFDM. The main advantages of applying BS algorithms to this estimation problem are the decreased complexity and increased resolution. When OFDM systems are compared to single carrier systems in terms of AOA estimation, the main advantage is that for each subcarrier, the received phase depending on the angle of arrival is different. This results in diversity in the angle of arrival equations. In this work, we will also concentrate on the advantage of this diversity and its improvement on the accuracy of location estimation systems as well as the location based services that can be developed based on the obtained accuracy levels.'