Publikationen
2022:
Jose-Angel Fernandez-Prieto, Joaquin Canada-Bago and Ulrich Birkel , "A Fuzzy Rule-Based System to Infer Subjective Noise Annoyance Using an Experimental Wireless Acoustic Sensor Network", Journal Smart Cities 2022, 5,1574–1589, doi: 10.3390/smartcities5040080
A. P. Matz, J. -A. Fernandez-Prieto, J. Canada-Bago and U. Birkel, "The Narrowband Bundling Protocol," in IEEE Wireless Communications Letters, vol. 11, no. 9, pp. 1900-1904, Sept. 2022, doi: 10.1109/LWC.2022.3186392
2020:
Matz, A.P.; Fernandez-Prieto, J.-A.; Cañada-Bago, J.; Birkel, U., A Systematic Analysis of Narrowband IoT Quality of Service, Sensors 2020, 20, 1636. Available online: https://www.mdpi.com/1424-8220/20/6/1636/htm
2012:
Ulrich Birkel, Mark Weber, Indoor Localization with UMTS compared to WLAN, International IEEE Conference on Indoor Positioning and Indoor Navigation (IPIN), November 2012, Sydney
Mark Weber, Ulrich Birkel, Ralf Collmann, Radiating Cable for Indoor Localization using UMTS, IEEE Conference UPINLBS2012, Helinski
2011:
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: Suppression of Power Level Fluctuations at Leaky Coaxial Cable Ends using Ferrite Cores, German Microwave Conference (GeMiC) 2011, März 2011, Darmstadt.
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: First Results of a Leaky Coaxial Cable Prototype for Indoor Positioning, IEEE Wireless Telecommunications Symposium (WTS) 2011, April 2011, New York.
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: Advantages of non-periodic Leaky Coaxial Cable Structures for Indoor Positioning, 74th Vehicular Technology IEEE Conference (VTC) 2011, September 2011, San Francisco.
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: First Results of a Leaky Coaxial Cable Prototype for Indoor Positioning, IEEE Wireless Telecommunications Symposium (WTS) 2011, April 2011, New York.
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: Advantages of non-periodic Leaky Coaxial Cable Structures for Indoor Positioning, 74th Vehicular Technology IEEE Conference (VTC) 2011, September 2011, San Francisco.
Mark Weber, Ulrich Birkel, Ralf Collmann, Julia Engelbrecht: Wireless Indoor Positioning: Localization improvements with a Leaky Coaxial Cable Prototype, 2011 International IEEE Conference on Indoor Positioning and Indoor Navigation (IPIN), September 2011, Guimarães.
2010:
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel, Mark Weber: Methodical Leaky Feeder Design for Indoor Positioning Considering Multipath Environments, IEEE Radio and Wireless Symposium 2010. [Link]
Mark Weber, Ulrich Birkel, Ralf Collmann, Julia Engelbrecht: Comparison of various methods for Indoor RF Fingerprinting using leaky feeder cable, 7th Workshop on Positioning, Navigation and Communication 2010 (WPNC'10).
Mark Weber, Ulrich Birkel, Ralf Collmann, Julia Engelbrecht: Indoor Lokalisierung: Anwendung eines Leckwellenleiters, 5. Kongress Multimediatechnik Wismar 2010.
Mark Weber, Ulrich Birkel, Ralf Collmann, Julia Engelbrecht: Wireless Indoor Positioning: Application of a leaky feeder cable, Convencion Cientifica de Ingeniería y Arquitectura (cujae) 2010, Dezember 2010, Havanna (Cuba).
2009:
Julia Engelbrecht, Ralf Collmann, Ulrich Birkel: Modellierung von für die Teilnehmer-Ortung in Mobilfunknetzen einzusetzender Leckwellenleiter-Strukturen, 14. VDE/ITG Mobilkomtagung. [Link]
Mark Weber, Ulrich Birkel, Ralf Collmann: Indoor RF Fingerprinting Using Leaky Feeder Cable Considering Environmental Changes, ACM Mobility Conference 2009. [Link]
2007:
Patentanmeldung:
U. Birkel, “Ortung eines mobilen Funkgeraetes in Bezug auf Leckwellenleiter", Patentanmeldung Aktenzeichen de 10 2007 037 723.3, August 2007