Expertise:

• LEO/MEO-Satellite Networks:

Simulation of LEO/MEO-Satellite Networks
Constellation, Footprints, ISLs, Traffic

• Mobile Communication Channels
Channel Recording and Modelling
• Measurement Van for Mobile Radio Channels
• Ultralight, High-Gain Antenna
 
• Satellite Diversity and Handover
Constellation, Service Area, Channel

• Multiple-Access
TDMA, CDMA

• Resource Management
Interference, Voice/Data Protocols, Adaptive Resource Allocation

• Routing
Up/Downlink-Routing, ISL-Routing
 
• Antenna Tracking
PAT for fixed, mobile and aeronautical systems, open loop and closed loop tracking algorithms
 

Projects:

• SECOMS: Satellite EHF Communications for Mobile Multimedia Services
• Experiment Description
• SECOMS (ACTS) Homepage

Mobile Propagation Measurements & Channel Modelling at 40 GHz

Adaptive Channel Allocation to Spotbeams

!!! Video of the SECOMS 40 GHz land mobile propagation experiment !!!

Secoms_Video, low quality (8 MB, secoms.avi, Video for Windows format)

Secoms_Video, better quality (7.5 MB, secoms2.zip, Video for Windows format)

• COBUCO (ACTS) Cordless Business Communication
Service & Traffic Characterisation
DECT Slot Management
Quality of Service & Network Performance

• ABATE (ACTS) ACTS Broadband Aeronautical Terminal Experiment
Aeronautical channel measurements at 20/30 GHz

Demonstration of high capacity aeronautical links for multimedia communications

• LMS Propagation Model for Non-Urban Areas, ESA study AO/1-3103/96NL/NB)

• Objectives
• Partners: IMST (main contractor), IHE
• IMST Study Homepage
• Hardware/Software Simulation Laboratory for Commun. Networks

• Simulation of Error Control and Multiple-Access Protocols

DLR location and traffic information

References

Group Members: