Communications Systems

Group Aeronautical Communications
and Multiple-Access

Head:

Members:

Students:

Research Topics:

Channel modeling, coding, modulation, pulse shaping, and multiple-access for aeronautical communications.

Multi-carrier transmission techniques for fourth generation mobile radio ("4G").

Mutliple-access schemes such as DS-CDMA, MC-CDMA, and Interleaved FDMA for mobile radio applications.

Implementation of digital transmission schemes into demonstration systems using DSP technology.

Current Projects and Activities:

B-VHF - Broadband VHF Aeronautical Communications System Based on MC-CDMA (EC Project)
Design, evaluation, and testbed implementation of an OFDM-based broadband VHF overlay system for future ATC (Air Traffic Control) communications.
EMMA - European Airport Management by A-SMGCS (EC Project)
Development of an A-SMGCS (Advanced Surface Movement, Guidance and Control System) and integration into the overall ATM (Air Traffic Management) system.
ADL - Advanced Airport Data Link (DLR Project)
Design and implementation of a high-rate digital data link for A-SMGCS communications within the airport environment.
TAKOKO - OFDM Based Overlay System (DFG¹⁾ Project within TakeOFDM)
Design and evaluation of OFDM-based overlay concepts for terrestrial communications.
Aeronautical Communications Panel (ACP) of International Civil Aviation Organisation (ICAO)
Standardization of digital transmission systems for aeronautical communications.

Selection of Completed Projects:

TARMAC - Taxi and Ramp Mangament and Control (DLR Project)
Development of A-SMGCS concepts as well as prototyp subsystems, like sensors, data fusion, data bank management, planning tool, and data link communications.
BETA - Operational Benefit Evaluation by Testing an A-SMGCS (EC Project)
User benefit validation of an prototyp A-SMGCS system.
fVDL - Future VHF Digital Link (Eurocontrol Project)
Evaluation of VDL Mode 3 and VDL Mode 4 (ADS-B and ADS-C)
Spread Spectrum Systems and Techniques in Wireless and Wired Communications (COST Project 262)
Design and evaluation of Multi-Carrier Spread-Spectrum (MC-SS) systems as well as Direct-Sequence (DS-SS) and Frequency-Hopping (FH-SS) spread spectrum systems.
REST - Computer Aided Interference Evaluation (RegTP²⁾ Project)
Development of a software tool to investigate interference situations in terrestrial, aeronautical and satellite based radio systems.
CDMA Compatibility (RegTP²⁾ Project)
Modelling and evaluating the CDMA interference on other radio systems.
CoDiT - Code Division Testbed (EC Project)
Design of a system concept and implementation in a testbed of a 3rd generation terrestrial mobile radio system.

1) Deutsche Forschungsgemeinschaft
2) German Regulatory Authority for Telecommunications and Posts

Miscellanous:

Author: Michael Schnell Last Change: February 2004