A cognitive system for future‐proof wireless microphones: Concept, Implementation and Results

Brendel J, Rieß S, Weigel R, Fischer G (2013)

Publication Type: Conference contribution

Publication year: 2013

Event location: Nis RS

DOI: 10.1109/TELSKS.2013.6704934

Abstract

Since several years, 'cognitive radio' is given much attention in research and is seen as a future technology in communications. In this paper a cognitive radio system for Program Making and Special Event (PMSE) devices (e.g. wireless microphones) is presented and the results of a field test are discussed. First, we outline the challenges which the PMSE industry has to cope with and how changes in regulatory and the digital dividend in the TV UHF band has impact on the operation reliability of PMSE devices. Afterwards, a system using cognitive radio techniques to ensure the high audio quality requirements and interference free operation of PMSE devices under the previously mentioned circumstances is presented. Beside a general overview over the developed system we focus on a distributed spectrum sensing network as part of the cognitive information acquisition to monitor the current spectrum situation. The data is used by the cognitive engine to detect potential interferers and to trigger operation parameter changes (e.g. frequency or transmit power) of the PMSE devices to avoid link quality degradation. We present the built up sensor nodes for the spectrum measurement and the developed software to control the sensor nodes and to preprocess the measured data. Finally, the results, collected with the field test platform in the fairgrounds of Berlin, show convincingly how the developed cognitive system makes PMSE devices future‐proof.

Authors with CRIS profile

Johannes Brendel Lehrstuhl für Technische Elektronik Steffen Rieß Lehrstuhl für Technische Elektronik Robert Weigel Lehrstuhl für Technische Elektronik Georg Fischer Professur für Technische Elektronik

How to cite

APA:

Brendel, J., Rieß, S., Weigel, R., & Fischer, G. (2013). A cognitive system for future‐proof wireless microphones: Concept, Implementation and Results. In Proceedings of the 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS). Nis, RS.

MLA:

Brendel, Johannes, et al. "A cognitive system for future‐proof wireless microphones: Concept, Implementation and Results." Proceedings of the 11th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services (TELSIKS), Nis 2013.

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