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Suche nach „[M.] [Gardill]“ hat 3 Publikationen gefunden
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    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    M. Gardill, A. Goetz, R. Weigel, R. Rose, A. Koelpin, Stefan Zorn

    A smart jamming system for UMTS/WCDMA cellular phone networks for search and rescue applications

    IEEE/MTT-S International Microwave Symposium digest (MTT), 2012, Piscataway, NJ

    2012

    ISBN: 978-1-4673-1085-7

    DOI: 10.1109/MWSYM.2012.6257769

    Abstract anzeigen

    Recent statistics show an increase in environmental disasters, a fact which is also perceivable to the public as reports of avalanches, earthquakes and landslides mount in media coverage. This paper introduces one part of the I-LOV project, endorsed by the German Federal Ministry of Education and Research. In this project partners from relief organizations, universities and industry investigate enhancements to disaster handling and victim rescue. One possible option is to take advantage of the fact, that a lot of people own a mobile phone today. To locate a person by his or her mobile phone requires to take over the phone by an own Base Transceiver Station (BTS). Jamming all other networks is one option to achieve that. This paper will introduce a new Field Programmable Gate Array (FPGA) based jamming system which disturbs only the absolute necessary parts of the WCDMA spectrum but reliably cuts all connections between mobile stations (MS) and existing BTS. The whole system including the signal generator and the front end will be discussed. Also measurement results will be shown.

    Elektrotechnik und Medientechnik

    Beitrag (Sammelband oder Tagungsband)

    M. Gardill, R. Weigel, A. Koelpin, Stefan Zorn

    Triggering UMTS user equipment inter-RAT cell reselection using noise jammers

    German Microwave Conference (GeMiC), 2011, Piscataway, NJ

    2011

    ISBN: 978-1-4244-9225-1

    Abstract anzeigen

    In this work a strategy for triggering an interradio access technology cell reselection in UMTS user equipment is proposed. All mobile devices within the effective range of a transmitter radiating a noise-like RF signal on the UMTS downlink frequency bands are forced to leave the UMTS cells and camp on non-UMTS cells, such as e.g., GSM. This allows to use a GSM based localization technique even in areas with UMTS coverage. In contrast to classical RF communication jammers which focus on disrupting the communication link, our exclusive goal is to trigger the inter-RAT cell reselection to GSM. In particular we estimate the necessary jammer RF power by examining the cell reselection procedure running in the user equipment (UE) and using some exemplary geographical scenarios. We use a hardware system to proof the results.

    Elektrotechnik und Medientechnik

    Vortrag

    M. Gardill, R. Weigel, A. Koelpin, Stefan Zorn

    Influencing Cell Reselection of UMTS User Equipment Using Interference Injection

    Workshop

    Workshop on Radar, Communication and Measurement (RADCOM), Hamburg