|Project Processing:||Fabian Schuh|
|Project Funding:||Bundesministerium für Wirtschaft und Technologie (BMWi)|
|Duration:||04/12 -- 05/13|
|Keywords:||Cognitive Radio, Special Events, Digital Transmission, Continuous Phase Modulation|
Program Making and Special Events (PMSE) describes the equipment for the transmission of audio and video during large-scale events, i.e. The Super Bowl. There, hundreds of wireless devices need to be managed with a frequency plan within a licences UHF-/ or L- band.
Due to the Digital Dividend in Europe several channels in the UHF band, that were used for PMSE were resold to the mobile communications section and become unavailable to PMSE devices. Further more so-called White Space Devices are allowed to use the parts of the UHF-band as-well leaving less freely usable frequencies.
Cognitive-PMSE (C-PMSE) tries to resolve this issue by actively scanning the surroundings for interferers and switching the carrier frequencies of one or several devices intelligently.
The LIT participates in this project by developing a new digital transmission scheme to replace the traditional frequency modulation (FM) transmission and thereby getting more resistant to interferences.
- Scalable Source Coding
The flexibility in Source Coding is important as it allows us to control the data rate that has to be transmitted. Depending several scenario characteristics the generated data must be transmitted over over a possibly bad channel. To guarantee a stable and high quality link the Source Coding algorithms must adapt to the present channel.
- Adaptive Coded Modulation
Depending on the channel conditions and the data rate as-well as the channel coding the transmission it-self will by adaptively choosing the optimum transmission and encoding scheme.
- Baseband Simulations
The complete digital transmission scheme will evaluated using base band simulations.
- Signaling Channel
To implement C-PMSE there has to be an uplink to the wireless devices for signaling. This uplink is newly introduced for C-PMSE.
beyerdynamic GmbH, eesy-id GmbH, Friedrich-Alexander-Universität Erlangen-Nürnberg, Institut für Rundfunktechnik GmbH, Leibniz Universität Hannover, RFmondial GmbH, Robert Bosch GmbH, Ruhr Universität Bochum, Sennheiser GmbH,